Home / 729,143.60-1,094,363.40-429,249.20

Finding the Fourth Proportional to 729,143.60, 1,094,363.40 and 429,249.20

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Solution

The fourth proportional to 729,143.60, 1,094,363.40 and 429,249.20 is: 644,255.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,143.60 : 1,094,363.40 = 429,249.20 : x
  2. Step 2: Convert to fraction form
    729,143.60/1,094,363.40 = 429,249.20/x
  3. Step 3: Cross multiply
    729,143.60x = 1,094,363.40 × 429,249.20
  4. Step 4: Simplify right side
    729,143.60x = 469,754,613,959.28
  5. Step 5: Solve for x
    x = 469,754,613,959.28/729,143.60
  6. Step 6: Final answer
    x = 644,255.28

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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.