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Finding the Fourth Proportional to 459,777.92, 689,666.28 and 144,259.12

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Solution

The fourth proportional to 459,777.92, 689,666.28 and 144,259.12 is: 216,388.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,777.92 : 689,666.28 = 144,259.12 : x
  2. Step 2: Convert to fraction form
    459,777.92/689,666.28 = 144,259.12/x
  3. Step 3: Cross multiply
    459,777.92x = 689,666.28 × 144,259.12
  4. Step 4: Simplify right side
    459,777.92x = 99,490,650,646.47
  5. Step 5: Solve for x
    x = 99,490,650,646.47/459,777.92
  6. Step 6: Final answer
    x = 216,388.49

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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.