Home / 1,118,959.64-1,679,902.68-664,380.64

Finding the Fourth Proportional to 1,118,959.64, 1,679,902.68 and 664,380.64

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Solution

The fourth proportional to 1,118,959.64, 1,679,902.68 and 664,380.64 is: 997,439.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,118,959.64 : 1,679,902.68 = 664,380.64 : x
  2. Step 2: Convert to fraction form
    1,118,959.64/1,679,902.68 = 664,380.64/x
  3. Step 3: Cross multiply
    1,118,959.64x = 1,679,902.68 × 664,380.64
  4. Step 4: Simplify right side
    1,118,959.64x = 1,116,094,817,676.12
  5. Step 5: Solve for x
    x = 1,116,094,817,676.12/1,118,959.64
  6. Step 6: Final answer
    x = 997,439.74

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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.