Home / 649,520.10-974,887.65-329,900.58

Finding the Fourth Proportional to 649,520.10, 974,887.65 and 329,900.58

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Solution

The fourth proportional to 649,520.10, 974,887.65 and 329,900.58 is: 495,159.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,520.10 : 974,887.65 = 329,900.58 : x
  2. Step 2: Convert to fraction form
    649,520.10/974,887.65 = 329,900.58/x
  3. Step 3: Cross multiply
    649,520.10x = 974,887.65 × 329,900.58
  4. Step 4: Simplify right side
    649,520.10x = 321,616,001,169.84
  5. Step 5: Solve for x
    x = 321,616,001,169.84/649,520.10
  6. Step 6: Final answer
    x = 495,159.43

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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.