Home / 627,120.12-865,094.02-397,271.88

Finding the Fourth Proportional to 627,120.12, 865,094.02 and 397,271.88

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Solution

The fourth proportional to 627,120.12, 865,094.02 and 397,271.88 is: 548,025.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,120.12 : 865,094.02 = 397,271.88 : x
  2. Step 2: Convert to fraction form
    627,120.12/865,094.02 = 397,271.88/x
  3. Step 3: Cross multiply
    627,120.12x = 865,094.02 × 397,271.88
  4. Step 4: Simplify right side
    627,120.12x = 343,677,527,702.16
  5. Step 5: Solve for x
    x = 343,677,527,702.16/627,120.12
  6. Step 6: Final answer
    x = 548,025.04

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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.