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Finding the Fourth Proportional to 559,132.80, 771,612.48 and 304,488.96

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Solution

The fourth proportional to 559,132.80, 771,612.48 and 304,488.96 is: 420,199.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,132.80 : 771,612.48 = 304,488.96 : x
  2. Step 2: Convert to fraction form
    559,132.80/771,612.48 = 304,488.96/x
  3. Step 3: Cross multiply
    559,132.80x = 771,612.48 × 304,488.96
  4. Step 4: Simplify right side
    559,132.80x = 234,947,481,558.22
  5. Step 5: Solve for x
    x = 234,947,481,558.22/559,132.80
  6. Step 6: Final answer
    x = 420,199.78

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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.