Home / 781,061.28-1,077,657.84-458,668.32

Finding the Fourth Proportional to 781,061.28, 1,077,657.84 and 458,668.32

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Solution

The fourth proportional to 781,061.28, 1,077,657.84 and 458,668.32 is: 632,840.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,061.28 : 1,077,657.84 = 458,668.32 : x
  2. Step 2: Convert to fraction form
    781,061.28/1,077,657.84 = 458,668.32/x
  3. Step 3: Cross multiply
    781,061.28x = 1,077,657.84 × 458,668.32
  4. Step 4: Simplify right side
    781,061.28x = 494,287,511,007.63
  5. Step 5: Solve for x
    x = 494,287,511,007.63/781,061.28
  6. Step 6: Final answer
    x = 632,840.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.