Home / 648,446.20-972,438.90-293,630.20

Finding the Fourth Proportional to 648,446.20, 972,438.90 and 293,630.20

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Solution

The fourth proportional to 648,446.20, 972,438.90 and 293,630.20 is: 440,340.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,446.20 : 972,438.90 = 293,630.20 : x
  2. Step 2: Convert to fraction form
    648,446.20/972,438.90 = 293,630.20/x
  3. Step 3: Cross multiply
    648,446.20x = 972,438.90 × 293,630.20
  4. Step 4: Simplify right side
    648,446.20x = 285,537,428,694.78
  5. Step 5: Solve for x
    x = 285,537,428,694.78/648,446.20
  6. Step 6: Final answer
    x = 440,340.97

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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.