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Finding the Fourth Proportional to 457,935.40, 686,903.10 and 369,361.90

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Solution

The fourth proportional to 457,935.40, 686,903.10 and 369,361.90 is: 554,042.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,935.40 : 686,903.10 = 369,361.90 : x
  2. Step 2: Convert to fraction form
    457,935.40/686,903.10 = 369,361.90/x
  3. Step 3: Cross multiply
    457,935.40x = 686,903.10 × 369,361.90
  4. Step 4: Simplify right side
    457,935.40x = 253,715,834,131.89
  5. Step 5: Solve for x
    x = 253,715,834,131.89/457,935.40
  6. Step 6: Final answer
    x = 554,042.85

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Similar ratio
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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.