Home / 459,930.38-689,901.77-144,387.32

Finding the Fourth Proportional to 459,930.38, 689,901.77 and 144,387.32

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Solution

The fourth proportional to 459,930.38, 689,901.77 and 144,387.32 is: 216,582.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,930.38 : 689,901.77 = 144,387.32 : x
  2. Step 2: Convert to fraction form
    459,930.38/689,901.77 = 144,387.32/x
  3. Step 3: Cross multiply
    459,930.38x = 689,901.77 × 144,387.32
  4. Step 4: Simplify right side
    459,930.38x = 99,613,064,545.02
  5. Step 5: Solve for x
    x = 99,613,064,545.02/459,930.38
  6. Step 6: Final answer
    x = 216,582.92

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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.