Home / 770,747.60-1,156,121.40-612,117.20

Finding the Fourth Proportional to 770,747.60, 1,156,121.40 and 612,117.20

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Solution

The fourth proportional to 770,747.60, 1,156,121.40 and 612,117.20 is: 918,175.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,747.60 : 1,156,121.40 = 612,117.20 : x
  2. Step 2: Convert to fraction form
    770,747.60/1,156,121.40 = 612,117.20/x
  3. Step 3: Cross multiply
    770,747.60x = 1,156,121.40 × 612,117.20
  4. Step 4: Simplify right side
    770,747.60x = 707,681,794,228.08
  5. Step 5: Solve for x
    x = 707,681,794,228.08/770,747.60
  6. Step 6: Final answer
    x = 918,175.80

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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.