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Finding the Fourth Proportional to 768,231.32, 1,060,153.17 and 445,971.38

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Solution

The fourth proportional to 768,231.32, 1,060,153.17 and 445,971.38 is: 615,436.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,231.32 : 1,060,153.17 = 445,971.38 : x
  2. Step 2: Convert to fraction form
    768,231.32/1,060,153.17 = 445,971.38/x
  3. Step 3: Cross multiply
    768,231.32x = 1,060,153.17 × 445,971.38
  4. Step 4: Simplify right side
    768,231.32x = 472,797,972,236.28
  5. Step 5: Solve for x
    x = 472,797,972,236.28/768,231.32
  6. Step 6: Final answer
    x = 615,436.99

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1.5x scale

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.