Home / 781,985.40-1,174,727.70-750,103.80

Finding the Fourth Proportional to 781,985.40, 1,174,727.70 and 750,103.80

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Solution

The fourth proportional to 781,985.40, 1,174,727.70 and 750,103.80 is: 1,126,833.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,985.40 : 1,174,727.70 = 750,103.80 : x
  2. Step 2: Convert to fraction form
    781,985.40/1,174,727.70 = 750,103.80/x
  3. Step 3: Cross multiply
    781,985.40x = 1,174,727.70 × 750,103.80
  4. Step 4: Simplify right side
    781,985.40x = 881,167,711,735.26
  5. Step 5: Solve for x
    x = 881,167,711,735.26/781,985.40
  6. Step 6: Final answer
    x = 1,126,833.97

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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.