Home / 840,967.20-1,160,525.28-458,990.88

Finding the Fourth Proportional to 840,967.20, 1,160,525.28 and 458,990.88

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Solution

The fourth proportional to 840,967.20, 1,160,525.28 and 458,990.88 is: 633,402.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,967.20 : 1,160,525.28 = 458,990.88 : x
  2. Step 2: Convert to fraction form
    840,967.20/1,160,525.28 = 458,990.88/x
  3. Step 3: Cross multiply
    840,967.20x = 1,160,525.28 × 458,990.88
  4. Step 4: Simplify right side
    840,967.20x = 532,670,519,529.45
  5. Step 5: Solve for x
    x = 532,670,519,529.45/840,967.20
  6. Step 6: Final answer
    x = 633,402.25

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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.