Home / 767,931.20-1,151,896.80-687,060.80

Finding the Fourth Proportional to 767,931.20, 1,151,896.80 and 687,060.80

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Solution

The fourth proportional to 767,931.20, 1,151,896.80 and 687,060.80 is: 1,030,591.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,931.20 : 1,151,896.80 = 687,060.80 : x
  2. Step 2: Convert to fraction form
    767,931.20/1,151,896.80 = 687,060.80/x
  3. Step 3: Cross multiply
    767,931.20x = 1,151,896.80 × 687,060.80
  4. Step 4: Simplify right side
    767,931.20x = 791,423,136,925.44
  5. Step 5: Solve for x
    x = 791,423,136,925.44/767,931.20
  6. Step 6: Final answer
    x = 1,030,591.20

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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.