Home / 766,978.10-1,150,456.35-346,253.30

Finding the Fourth Proportional to 766,978.10, 1,150,456.35 and 346,253.30

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Solution

The fourth proportional to 766,978.10, 1,150,456.35 and 346,253.30 is: 519,375.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,978.10 : 1,150,456.35 = 346,253.30 : x
  2. Step 2: Convert to fraction form
    766,978.10/1,150,456.35 = 346,253.30/x
  3. Step 3: Cross multiply
    766,978.10x = 1,150,456.35 × 346,253.30
  4. Step 4: Simplify right side
    766,978.10x = 398,349,307,693.46
  5. Step 5: Solve for x
    x = 398,349,307,693.46/766,978.10
  6. Step 6: Final answer
    x = 519,375.07

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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.