Home / 431,723.60-646,548.60-413,061.20

Finding the Fourth Proportional to 431,723.60, 646,548.60 and 413,061.20

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Solution

The fourth proportional to 431,723.60, 646,548.60 and 413,061.20 is: 618,599.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,723.60 : 646,548.60 = 413,061.20 : x
  2. Step 2: Convert to fraction form
    431,723.60/646,548.60 = 413,061.20/x
  3. Step 3: Cross multiply
    431,723.60x = 646,548.60 × 413,061.20
  4. Step 4: Simplify right side
    431,723.60x = 267,064,140,574.32
  5. Step 5: Solve for x
    x = 267,064,140,574.32/431,723.60
  6. Step 6: Final answer
    x = 618,599.82

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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.