Home / 649,834.28-974,754.16-426,607.19

Finding the Fourth Proportional to 649,834.28, 974,754.16 and 426,607.19

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Solution

The fourth proportional to 649,834.28, 974,754.16 and 426,607.19 is: 639,912.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,834.28 : 974,754.16 = 426,607.19 : x
  2. Step 2: Convert to fraction form
    649,834.28/974,754.16 = 426,607.19/x
  3. Step 3: Cross multiply
    649,834.28x = 974,754.16 × 426,607.19
  4. Step 4: Simplify right side
    649,834.28x = 415,837,134,508.78
  5. Step 5: Solve for x
    x = 415,837,134,508.78/649,834.28
  6. Step 6: Final answer
    x = 639,912.58

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Double scale
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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.