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Finding the Fourth Proportional to 563,443.06, 777,546.94 and 308,793.64

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Solution

The fourth proportional to 563,443.06, 777,546.94 and 308,793.64 is: 426,132.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,443.06 : 777,546.94 = 308,793.64 : x
  2. Step 2: Convert to fraction form
    563,443.06/777,546.94 = 308,793.64/x
  3. Step 3: Cross multiply
    563,443.06x = 777,546.94 × 308,793.64
  4. Step 4: Simplify right side
    563,443.06x = 240,101,549,873.46
  5. Step 5: Solve for x
    x = 240,101,549,873.46/563,443.06
  6. Step 6: Final answer
    x = 426,132.77

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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.