Home / 761,429.84-1,050,757.96-421,900.88

Finding the Fourth Proportional to 761,429.84, 1,050,757.96 and 421,900.88

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Solution

The fourth proportional to 761,429.84, 1,050,757.96 and 421,900.88 is: 582,214.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,429.84 : 1,050,757.96 = 421,900.88 : x
  2. Step 2: Convert to fraction form
    761,429.84/1,050,757.96 = 421,900.88/x
  3. Step 3: Cross multiply
    761,429.84x = 1,050,757.96 × 421,900.88
  4. Step 4: Simplify right side
    761,429.84x = 443,315,707,991.01
  5. Step 5: Solve for x
    x = 443,315,707,991.01/761,429.84
  6. Step 6: Final answer
    x = 582,214.78

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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.