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Finding the Fourth Proportional to 577,803.98, 866,890.52 and 278,314.85

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Solution

The fourth proportional to 577,803.98, 866,890.52 and 278,314.85 is: 417,561.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,803.98 : 866,890.52 = 278,314.85 : x
  2. Step 2: Convert to fraction form
    577,803.98/866,890.52 = 278,314.85/x
  3. Step 3: Cross multiply
    577,803.98x = 866,890.52 × 278,314.85
  4. Step 4: Simplify right side
    577,803.98x = 241,268,506,859.56
  5. Step 5: Solve for x
    x = 241,268,506,859.56/577,803.98
  6. Step 6: Final answer
    x = 417,561.17

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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.