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Finding the Fourth Proportional to 559,680.32, 772,654.16 and 449,591.68

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Solution

The fourth proportional to 559,680.32, 772,654.16 and 449,591.68 is: 620,673.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,680.32 : 772,654.16 = 449,591.68 : x
  2. Step 2: Convert to fraction form
    559,680.32/772,654.16 = 449,591.68/x
  3. Step 3: Cross multiply
    559,680.32x = 772,654.16 × 449,591.68
  4. Step 4: Simplify right side
    559,680.32x = 347,378,881,853.39
  5. Step 5: Solve for x
    x = 347,378,881,853.39/559,680.32
  6. Step 6: Final answer
    x = 620,673.75

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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.