Home / 996,987.90-1,495,481.85-642,693.90

Finding the Fourth Proportional to 996,987.90, 1,495,481.85 and 642,693.90

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Solution

The fourth proportional to 996,987.90, 1,495,481.85 and 642,693.90 is: 964,040.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    996,987.90 : 1,495,481.85 = 642,693.90 : x
  2. Step 2: Convert to fraction form
    996,987.90/1,495,481.85 = 642,693.90/x
  3. Step 3: Cross multiply
    996,987.90x = 1,495,481.85 × 642,693.90
  4. Step 4: Simplify right side
    996,987.90x = 961,137,062,555.72
  5. Step 5: Solve for x
    x = 961,137,062,555.72/996,987.90
  6. Step 6: Final answer
    x = 964,040.85

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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.