Home / 712,540.20-1,069,587.90-397,612.20

Finding the Fourth Proportional to 712,540.20, 1,069,587.90 and 397,612.20

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Solution

The fourth proportional to 712,540.20, 1,069,587.90 and 397,612.20 is: 596,852.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,540.20 : 1,069,587.90 = 397,612.20 : x
  2. Step 2: Convert to fraction form
    712,540.20/1,069,587.90 = 397,612.20/x
  3. Step 3: Cross multiply
    712,540.20x = 1,069,587.90 × 397,612.20
  4. Step 4: Simplify right side
    712,540.20x = 425,281,198,012.38
  5. Step 5: Solve for x
    x = 425,281,198,012.38/712,540.20
  6. Step 6: Final answer
    x = 596,852.22

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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.