Home / 861,484.28-1,188,848.36-479,502.86

Finding the Fourth Proportional to 861,484.28, 1,188,848.36 and 479,502.86

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Solution

The fourth proportional to 861,484.28, 1,188,848.36 and 479,502.86 is: 661,713.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,484.28 : 1,188,848.36 = 479,502.86 : x
  2. Step 2: Convert to fraction form
    861,484.28/1,188,848.36 = 479,502.86/x
  3. Step 3: Cross multiply
    861,484.28x = 1,188,848.36 × 479,502.86
  4. Step 4: Simplify right side
    861,484.28x = 570,056,188,726.31
  5. Step 5: Solve for x
    x = 570,056,188,726.31/861,484.28
  6. Step 6: Final answer
    x = 661,713.98

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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.