Home / 859,402.52-1,287,841.99-432,351.35

Finding the Fourth Proportional to 859,402.52, 1,287,841.99 and 432,351.35

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Solution

The fourth proportional to 859,402.52, 1,287,841.99 and 432,351.35 is: 647,892.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,402.52 : 1,287,841.99 = 432,351.35 : x
  2. Step 2: Convert to fraction form
    859,402.52/1,287,841.99 = 432,351.35/x
  3. Step 3: Cross multiply
    859,402.52x = 1,287,841.99 × 432,351.35
  4. Step 4: Simplify right side
    859,402.52x = 556,800,222,963.19
  5. Step 5: Solve for x
    x = 556,800,222,963.19/859,402.52
  6. Step 6: Final answer
    x = 647,892.24

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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.