Home / 731,985.56-1,010,139.91-409,695.72

Finding the Fourth Proportional to 731,985.56, 1,010,139.91 and 409,695.72

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Solution

The fourth proportional to 731,985.56, 1,010,139.91 and 409,695.72 is: 565,380.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    731,985.56 : 1,010,139.91 = 409,695.72 : x
  2. Step 2: Convert to fraction form
    731,985.56/1,010,139.91 = 409,695.72/x
  3. Step 3: Cross multiply
    731,985.56x = 1,010,139.91 × 409,695.72
  4. Step 4: Simplify right side
    731,985.56x = 413,850,000,902.50
  5. Step 5: Solve for x
    x = 413,850,000,902.50/731,985.56
  6. Step 6: Final answer
    x = 565,380.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.