Home / 761,458.84-1,050,819.42-421,932.76

Finding the Fourth Proportional to 761,458.84, 1,050,819.42 and 421,932.76

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Solution

The fourth proportional to 761,458.84, 1,050,819.42 and 421,932.76 is: 582,270.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,458.84 : 1,050,819.42 = 421,932.76 : x
  2. Step 2: Convert to fraction form
    761,458.84/1,050,819.42 = 421,932.76/x
  3. Step 3: Cross multiply
    761,458.84x = 1,050,819.42 × 421,932.76
  4. Step 4: Simplify right side
    761,458.84x = 443,375,138,142.20
  5. Step 5: Solve for x
    x = 443,375,138,142.20/761,458.84
  6. Step 6: Final answer
    x = 582,270.66

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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.