Home / 649,622.20-974,433.30-425,673.40

Finding the Fourth Proportional to 649,622.20, 974,433.30 and 425,673.40

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Solution

The fourth proportional to 649,622.20, 974,433.30 and 425,673.40 is: 638,510.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,622.20 : 974,433.30 = 425,673.40 : x
  2. Step 2: Convert to fraction form
    649,622.20/974,433.30 = 425,673.40/x
  3. Step 3: Cross multiply
    649,622.20x = 974,433.30 × 425,673.40
  4. Step 4: Simplify right side
    649,622.20x = 414,790,335,884.22
  5. Step 5: Solve for x
    x = 414,790,335,884.22/649,622.20
  6. Step 6: Final answer
    x = 638,510.10

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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.