Home / 778,896.80-1,168,345.20-424,602.80

Finding the Fourth Proportional to 778,896.80, 1,168,345.20 and 424,602.80

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Solution

The fourth proportional to 778,896.80, 1,168,345.20 and 424,602.80 is: 636,904.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,896.80 : 1,168,345.20 = 424,602.80 : x
  2. Step 2: Convert to fraction form
    778,896.80/1,168,345.20 = 424,602.80/x
  3. Step 3: Cross multiply
    778,896.80x = 1,168,345.20 × 424,602.80
  4. Step 4: Simplify right side
    778,896.80x = 496,082,643,286.56
  5. Step 5: Solve for x
    x = 496,082,643,286.56/778,896.80
  6. Step 6: Final answer
    x = 636,904.20

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.