Home / 917,400.96-1,375,380.36-579,731.40

Finding the Fourth Proportional to 917,400.96, 1,375,380.36 and 579,731.40

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Solution

The fourth proportional to 917,400.96, 1,375,380.36 and 579,731.40 is: 869,141.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,400.96 : 1,375,380.36 = 579,731.40 : x
  2. Step 2: Convert to fraction form
    917,400.96/1,375,380.36 = 579,731.40/x
  3. Step 3: Cross multiply
    917,400.96x = 1,375,380.36 × 579,731.40
  4. Step 4: Simplify right side
    917,400.96x = 797,351,181,635.30
  5. Step 5: Solve for x
    x = 797,351,181,635.30/917,400.96
  6. Step 6: Final answer
    x = 869,141.43

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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.