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Finding the Fourth Proportional to 2,784,607.64, 4,176,915.11 and 762,869.31

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Solution

The fourth proportional to 2,784,607.64, 4,176,915.11 and 762,869.31 is: 1,144,304.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,784,607.64 : 4,176,915.11 = 762,869.31 : x
  2. Step 2: Convert to fraction form
    2,784,607.64/4,176,915.11 = 762,869.31/x
  3. Step 3: Cross multiply
    2,784,607.64x = 4,176,915.11 × 762,869.31
  4. Step 4: Simplify right side
    2,784,607.64x = 3,186,440,344,079.93
  5. Step 5: Solve for x
    x = 3,186,440,344,079.93/2,784,607.64
  6. Step 6: Final answer
    x = 1,144,304.97

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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.