Home / 761,517.84-1,050,900.88-421,991.76

Finding the Fourth Proportional to 761,517.84, 1,050,900.88 and 421,991.76

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Solution

The fourth proportional to 761,517.84, 1,050,900.88 and 421,991.76 is: 582,352.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,517.84 : 1,050,900.88 = 421,991.76 : x
  2. Step 2: Convert to fraction form
    761,517.84/1,050,900.88 = 421,991.76/x
  3. Step 3: Cross multiply
    761,517.84x = 1,050,900.88 × 421,991.76
  4. Step 4: Simplify right side
    761,517.84x = 443,471,511,936.75
  5. Step 5: Solve for x
    x = 443,471,511,936.75/761,517.84
  6. Step 6: Final answer
    x = 582,352.10

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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.