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Finding the Fourth Proportional to 654,328.30, 981,492.45 and 496,864.30

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Solution

The fourth proportional to 654,328.30, 981,492.45 and 496,864.30 is: 745,296.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,328.30 : 981,492.45 = 496,864.30 : x
  2. Step 2: Convert to fraction form
    654,328.30/981,492.45 = 496,864.30/x
  3. Step 3: Cross multiply
    654,328.30x = 981,492.45 × 496,864.30
  4. Step 4: Simplify right side
    654,328.30x = 487,668,559,124.54
  5. Step 5: Solve for x
    x = 487,668,559,124.54/654,328.30
  6. Step 6: Final answer
    x = 745,296.45

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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.