Home / 768,217.46-1,060,042.29-428,700.02

Finding the Fourth Proportional to 768,217.46, 1,060,042.29 and 428,700.02

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Solution

The fourth proportional to 768,217.46, 1,060,042.29 and 428,700.02 is: 591,551.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,217.46 : 1,060,042.29 = 428,700.02 : x
  2. Step 2: Convert to fraction form
    768,217.46/1,060,042.29 = 428,700.02/x
  3. Step 3: Cross multiply
    768,217.46x = 1,060,042.29 × 428,700.02
  4. Step 4: Simplify right side
    768,217.46x = 454,440,150,923.85
  5. Step 5: Solve for x
    x = 454,440,150,923.85/768,217.46
  6. Step 6: Final answer
    x = 591,551.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.