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Finding the Fourth Proportional to 615,576.64, 849,849.14 and 469,233.53

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Solution

The fourth proportional to 615,576.64, 849,849.14 and 469,233.53 is: 647,811.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,576.64 : 849,849.14 = 469,233.53 : x
  2. Step 2: Convert to fraction form
    615,576.64/849,849.14 = 469,233.53/x
  3. Step 3: Cross multiply
    615,576.64x = 849,849.14 × 469,233.53
  4. Step 4: Simplify right side
    615,576.64x = 398,777,709,583.50
  5. Step 5: Solve for x
    x = 398,777,709,583.50/615,576.64
  6. Step 6: Final answer
    x = 647,811.64

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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.