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Finding the Fourth Proportional to 1,369,737.92, 1,890,241.44 and 757,935.20

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Solution

The fourth proportional to 1,369,737.92, 1,890,241.44 and 757,935.20 is: 1,045,952.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,369,737.92 : 1,890,241.44 = 757,935.20 : x
  2. Step 2: Convert to fraction form
    1,369,737.92/1,890,241.44 = 757,935.20/x
  3. Step 3: Cross multiply
    1,369,737.92x = 1,890,241.44 × 757,935.20
  4. Step 4: Simplify right side
    1,369,737.92x = 1,432,680,523,874.69
  5. Step 5: Solve for x
    x = 1,432,680,523,874.69/1,369,737.92
  6. Step 6: Final answer
    x = 1,045,952.30

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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.