Home / 1,118,990.64-1,679,261.14-445,002.88

Finding the Fourth Proportional to 1,118,990.64, 1,679,261.14 and 445,002.88

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Solution

The fourth proportional to 1,118,990.64, 1,679,261.14 and 445,002.88 is: 667,812.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,118,990.64 : 1,679,261.14 = 445,002.88 : x
  2. Step 2: Convert to fraction form
    1,118,990.64/1,679,261.14 = 445,002.88/x
  3. Step 3: Cross multiply
    1,118,990.64x = 1,679,261.14 × 445,002.88
  4. Step 4: Simplify right side
    1,118,990.64x = 747,276,043,572.08
  5. Step 5: Solve for x
    x = 747,276,043,572.08/1,118,990.64
  6. Step 6: Final answer
    x = 667,812.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.