Home / 985,694.80-1,478,542.20-424,729.30

Finding the Fourth Proportional to 985,694.80, 1,478,542.20 and 424,729.30

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Solution

The fourth proportional to 985,694.80, 1,478,542.20 and 424,729.30 is: 637,093.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,694.80 : 1,478,542.20 = 424,729.30 : x
  2. Step 2: Convert to fraction form
    985,694.80/1,478,542.20 = 424,729.30/x
  3. Step 3: Cross multiply
    985,694.80x = 1,478,542.20 × 424,729.30
  4. Step 4: Simplify right side
    985,694.80x = 627,980,193,626.46
  5. Step 5: Solve for x
    x = 627,980,193,626.46/985,694.80
  6. Step 6: Final answer
    x = 637,093.95

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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.