Home / 649,624.20-974,436.30-425,675.40

Finding the Fourth Proportional to 649,624.20, 974,436.30 and 425,675.40

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Solution

The fourth proportional to 649,624.20, 974,436.30 and 425,675.40 is: 638,513.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,624.20 : 974,436.30 = 425,675.40 : x
  2. Step 2: Convert to fraction form
    649,624.20/974,436.30 = 425,675.40/x
  3. Step 3: Cross multiply
    649,624.20x = 974,436.30 × 425,675.40
  4. Step 4: Simplify right side
    649,624.20x = 414,793,561,777.02
  5. Step 5: Solve for x
    x = 414,793,561,777.02/649,624.20
  6. Step 6: Final answer
    x = 638,513.10

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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.