Home / 763,337.10-1,145,005.65-538,221.90

Finding the Fourth Proportional to 763,337.10, 1,145,005.65 and 538,221.90

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Solution

The fourth proportional to 763,337.10, 1,145,005.65 and 538,221.90 is: 807,332.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,337.10 : 1,145,005.65 = 538,221.90 : x
  2. Step 2: Convert to fraction form
    763,337.10/1,145,005.65 = 538,221.90/x
  3. Step 3: Cross multiply
    763,337.10x = 1,145,005.65 × 538,221.90
  4. Step 4: Simplify right side
    763,337.10x = 616,267,116,453.74
  5. Step 5: Solve for x
    x = 616,267,116,453.74/763,337.10
  6. Step 6: Final answer
    x = 807,332.85

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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.