Home / 1,012,702.31-1,397,656.86-664,135.86

Finding the Fourth Proportional to 1,012,702.31, 1,397,656.86 and 664,135.86

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Solution

The fourth proportional to 1,012,702.31, 1,397,656.86 and 664,135.86 is: 916,591.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,012,702.31 : 1,397,656.86 = 664,135.86 : x
  2. Step 2: Convert to fraction form
    1,012,702.31/1,397,656.86 = 664,135.86/x
  3. Step 3: Cross multiply
    1,012,702.31x = 1,397,656.86 × 664,135.86
  4. Step 4: Simplify right side
    1,012,702.31x = 928,234,035,589.88
  5. Step 5: Solve for x
    x = 928,234,035,589.88/1,012,702.31
  6. Step 6: Final answer
    x = 916,591.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.