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Finding the Fourth Proportional to 498,865.76, 688,449.88 and 272,525.84

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Solution

The fourth proportional to 498,865.76, 688,449.88 and 272,525.84 is: 376,093.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,865.76 : 688,449.88 = 272,525.84 : x
  2. Step 2: Convert to fraction form
    498,865.76/688,449.88 = 272,525.84/x
  3. Step 3: Cross multiply
    498,865.76x = 688,449.88 × 272,525.84
  4. Step 4: Simplify right side
    498,865.76x = 187,620,381,844.90
  5. Step 5: Solve for x
    x = 187,620,381,844.90/498,865.76
  6. Step 6: Final answer
    x = 376,093.93

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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.