Home / 440,909.64-661,244.33-120,985.66

Finding the Fourth Proportional to 440,909.64, 661,244.33 and 120,985.66

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Solution

The fourth proportional to 440,909.64, 661,244.33 and 120,985.66 is: 181,445.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,909.64 : 661,244.33 = 120,985.66 : x
  2. Step 2: Convert to fraction form
    440,909.64/661,244.33 = 120,985.66/x
  3. Step 3: Cross multiply
    440,909.64x = 661,244.33 × 120,985.66
  4. Step 4: Simplify right side
    440,909.64x = 80,001,081,686.31
  5. Step 5: Solve for x
    x = 80,001,081,686.31/440,909.64
  6. Step 6: Final answer
    x = 181,445.53

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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.