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Finding the Fourth Proportional to 637,614.79, 956,420.73 and 437,327.91

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Solution

The fourth proportional to 637,614.79, 956,420.73 and 437,327.91 is: 655,990.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,614.79 : 956,420.73 = 437,327.91 : x
  2. Step 2: Convert to fraction form
    637,614.79/956,420.73 = 437,327.91/x
  3. Step 3: Cross multiply
    637,614.79x = 956,420.73 × 437,327.91
  4. Step 4: Simplify right side
    637,614.79x = 418,269,478,931.57
  5. Step 5: Solve for x
    x = 418,269,478,931.57/637,614.79
  6. Step 6: Final answer
    x = 655,990.87

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1.5x scale

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.