Home / 861,885.96-1,292,828.94-440,932.20

Finding the Fourth Proportional to 861,885.96, 1,292,828.94 and 440,932.20

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Solution

The fourth proportional to 861,885.96, 1,292,828.94 and 440,932.20 is: 661,398.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,885.96 : 1,292,828.94 = 440,932.20 : x
  2. Step 2: Convert to fraction form
    861,885.96/1,292,828.94 = 440,932.20/x
  3. Step 3: Cross multiply
    861,885.96x = 1,292,828.94 × 440,932.20
  4. Step 4: Simplify right side
    861,885.96x = 570,049,908,737.87
  5. Step 5: Solve for x
    x = 570,049,908,737.87/861,885.96
  6. Step 6: Final answer
    x = 661,398.30

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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.