Home / 767,935.20-1,151,902.80-687,064.80

Finding the Fourth Proportional to 767,935.20, 1,151,902.80 and 687,064.80

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Solution

The fourth proportional to 767,935.20, 1,151,902.80 and 687,064.80 is: 1,030,597.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,935.20 : 1,151,902.80 = 687,064.80 : x
  2. Step 2: Convert to fraction form
    767,935.20/1,151,902.80 = 687,064.80/x
  3. Step 3: Cross multiply
    767,935.20x = 1,151,902.80 × 687,064.80
  4. Step 4: Simplify right side
    767,935.20x = 791,431,866,901.44
  5. Step 5: Solve for x
    x = 791,431,866,901.44/767,935.20
  6. Step 6: Final answer
    x = 1,030,597.20

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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.