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Finding the Fourth Proportional to 656,372.84, 905,963.06 and 427,500.46

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Solution

The fourth proportional to 656,372.84, 905,963.06 and 427,500.46 is: 590,060.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,372.84 : 905,963.06 = 427,500.46 : x
  2. Step 2: Convert to fraction form
    656,372.84/905,963.06 = 427,500.46/x
  3. Step 3: Cross multiply
    656,372.84x = 905,963.06 × 427,500.46
  4. Step 4: Simplify right side
    656,372.84x = 387,299,620,490.60
  5. Step 5: Solve for x
    x = 387,299,620,490.60/656,372.84
  6. Step 6: Final answer
    x = 590,060.40

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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.