Home / 768,635.60-1,153,653.05-409,108.29

Finding the Fourth Proportional to 768,635.60, 1,153,653.05 and 409,108.29

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Solution

The fourth proportional to 768,635.60, 1,153,653.05 and 409,108.29 is: 614,034.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,635.60 : 1,153,653.05 = 409,108.29 : x
  2. Step 2: Convert to fraction form
    768,635.60/1,153,653.05 = 409,108.29/x
  3. Step 3: Cross multiply
    768,635.60x = 1,153,653.05 × 409,108.29
  4. Step 4: Simplify right side
    768,635.60x = 471,969,024,493.24
  5. Step 5: Solve for x
    x = 471,969,024,493.24/768,635.60
  6. Step 6: Final answer
    x = 614,034.83

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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.