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Finding the Fourth Proportional to 486,888.17, 730,332.25 and 319,467.85

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Solution

The fourth proportional to 486,888.17, 730,332.25 and 319,467.85 is: 479,201.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,888.17 : 730,332.25 = 319,467.85 : x
  2. Step 2: Convert to fraction form
    486,888.17/730,332.25 = 319,467.85/x
  3. Step 3: Cross multiply
    486,888.17x = 730,332.25 × 319,467.85
  4. Step 4: Simplify right side
    486,888.17x = 233,317,671,068.66
  5. Step 5: Solve for x
    x = 233,317,671,068.66/486,888.17
  6. Step 6: Final answer
    x = 479,201.77

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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.