Home / 731,979.12-1,010,131.02-409,689.20

Finding the Fourth Proportional to 731,979.12, 1,010,131.02 and 409,689.20

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Solution

The fourth proportional to 731,979.12, 1,010,131.02 and 409,689.20 is: 565,371.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    731,979.12 : 1,010,131.02 = 409,689.20 : x
  2. Step 2: Convert to fraction form
    731,979.12/1,010,131.02 = 409,689.20/x
  3. Step 3: Cross multiply
    731,979.12x = 1,010,131.02 × 409,689.20
  4. Step 4: Simplify right side
    731,979.12x = 413,839,769,478.98
  5. Step 5: Solve for x
    x = 413,839,769,478.98/731,979.12
  6. Step 6: Final answer
    x = 565,371.00

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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.