Home / 767,939.20-1,151,908.80-687,068.80

Finding the Fourth Proportional to 767,939.20, 1,151,908.80 and 687,068.80

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Solution

The fourth proportional to 767,939.20, 1,151,908.80 and 687,068.80 is: 1,030,603.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,939.20 : 1,151,908.80 = 687,068.80 : x
  2. Step 2: Convert to fraction form
    767,939.20/1,151,908.80 = 687,068.80/x
  3. Step 3: Cross multiply
    767,939.20x = 1,151,908.80 × 687,068.80
  4. Step 4: Simplify right side
    767,939.20x = 791,440,596,925.44
  5. Step 5: Solve for x
    x = 791,440,596,925.44/767,939.20
  6. Step 6: Final answer
    x = 1,030,603.20

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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.