Home / 908,029.91-1,253,089.68-500,146.21

Finding the Fourth Proportional to 908,029.91, 1,253,089.68 and 500,146.21

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Solution

The fourth proportional to 908,029.91, 1,253,089.68 and 500,146.21 is: 690,206.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,029.91 : 1,253,089.68 = 500,146.21 : x
  2. Step 2: Convert to fraction form
    908,029.91/1,253,089.68 = 500,146.21/x
  3. Step 3: Cross multiply
    908,029.91x = 1,253,089.68 × 500,146.21
  4. Step 4: Simplify right side
    908,029.91x = 626,728,047,976.66
  5. Step 5: Solve for x
    x = 626,728,047,976.66/908,029.91
  6. Step 6: Final answer
    x = 690,206.40

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.