Home / 728,610.60-1,092,915.90-697,117.80

Finding the Fourth Proportional to 728,610.60, 1,092,915.90 and 697,117.80

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Solution

The fourth proportional to 728,610.60, 1,092,915.90 and 697,117.80 is: 1,045,676.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,610.60 : 1,092,915.90 = 697,117.80 : x
  2. Step 2: Convert to fraction form
    728,610.60/1,092,915.90 = 697,117.80/x
  3. Step 3: Cross multiply
    728,610.60x = 1,092,915.90 × 697,117.80
  4. Step 4: Simplify right side
    728,610.60x = 761,891,127,793.02
  5. Step 5: Solve for x
    x = 761,891,127,793.02/728,610.60
  6. Step 6: Final answer
    x = 1,045,676.70

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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.