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Finding the Fourth Proportional to 615,539.76, 849,829.08 and 472,023.60

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Solution

The fourth proportional to 615,539.76, 849,829.08 and 472,023.60 is: 651,687.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,539.76 : 849,829.08 = 472,023.60 : x
  2. Step 2: Convert to fraction form
    615,539.76/849,829.08 = 472,023.60/x
  3. Step 3: Cross multiply
    615,539.76x = 849,829.08 × 472,023.60
  4. Step 4: Simplify right side
    615,539.76x = 401,139,381,726.29
  5. Step 5: Solve for x
    x = 401,139,381,726.29/615,539.76
  6. Step 6: Final answer
    x = 651,687.20

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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.