Home / 1,315,177.75-1,814,945.30-711,565.75

Finding the Fourth Proportional to 1,315,177.75, 1,814,945.30 and 711,565.75

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Solution

The fourth proportional to 1,315,177.75, 1,814,945.30 and 711,565.75 is: 981,960.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,177.75 : 1,814,945.30 = 711,565.75 : x
  2. Step 2: Convert to fraction form
    1,315,177.75/1,814,945.30 = 711,565.75/x
  3. Step 3: Cross multiply
    1,315,177.75x = 1,814,945.30 × 711,565.75
  4. Step 4: Simplify right side
    1,315,177.75x = 1,291,452,913,603.48
  5. Step 5: Solve for x
    x = 1,291,452,913,603.48/1,315,177.75
  6. Step 6: Final answer
    x = 981,960.74

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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.