Home / 637,440.12-955,810.20-437,810.76

Finding the Fourth Proportional to 637,440.12, 955,810.20 and 437,810.76

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Solution

The fourth proportional to 637,440.12, 955,810.20 and 437,810.76 is: 656,475.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,440.12 : 955,810.20 = 437,810.76 : x
  2. Step 2: Convert to fraction form
    637,440.12/955,810.20 = 437,810.76/x
  3. Step 3: Cross multiply
    637,440.12x = 955,810.20 × 437,810.76
  4. Step 4: Simplify right side
    637,440.12x = 418,463,990,077.75
  5. Step 5: Solve for x
    x = 418,463,990,077.75/637,440.12
  6. Step 6: Final answer
    x = 656,475.76

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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.