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Finding the Fourth Proportional to 425,845.97, 637,440.35 and 313,652.87

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Solution

The fourth proportional to 425,845.97, 637,440.35 and 313,652.87 is: 469,500.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,845.97 : 637,440.35 = 313,652.87 : x
  2. Step 2: Convert to fraction form
    425,845.97/637,440.35 = 313,652.87/x
  3. Step 3: Cross multiply
    425,845.97x = 637,440.35 × 313,652.87
  4. Step 4: Simplify right side
    425,845.97x = 199,934,990,475.84
  5. Step 5: Solve for x
    x = 199,934,990,475.84/425,845.97
  6. Step 6: Final answer
    x = 469,500.73

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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.