Home / 729,471.60-1,094,855.40-429,577.20

Finding the Fourth Proportional to 729,471.60, 1,094,855.40 and 429,577.20

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Solution

The fourth proportional to 729,471.60, 1,094,855.40 and 429,577.20 is: 644,747.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,471.60 : 1,094,855.40 = 429,577.20 : x
  2. Step 2: Convert to fraction form
    729,471.60/1,094,855.40 = 429,577.20/x
  3. Step 3: Cross multiply
    729,471.60x = 1,094,855.40 × 429,577.20
  4. Step 4: Simplify right side
    729,471.60x = 470,324,917,136.88
  5. Step 5: Solve for x
    x = 470,324,917,136.88/729,471.60
  6. Step 6: Final answer
    x = 644,747.40

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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.