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Finding the Fourth Proportional to 539,417.78, 808,876.38 and 314,842.85

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Solution

The fourth proportional to 539,417.78, 808,876.38 and 314,842.85 is: 472,118.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,417.78 : 808,876.38 = 314,842.85 : x
  2. Step 2: Convert to fraction form
    539,417.78/808,876.38 = 314,842.85/x
  3. Step 3: Cross multiply
    539,417.78x = 808,876.38 × 314,842.85
  4. Step 4: Simplify right side
    539,417.78x = 254,668,944,776.88
  5. Step 5: Solve for x
    x = 254,668,944,776.88/539,417.78
  6. Step 6: Final answer
    x = 472,118.19

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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.