Home / 497,387.10-745,456.70-212,743.64

Finding the Fourth Proportional to 497,387.10, 745,456.70 and 212,743.64

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Solution

The fourth proportional to 497,387.10, 745,456.70 and 212,743.64 is: 318,848.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,387.10 : 745,456.70 = 212,743.64 : x
  2. Step 2: Convert to fraction form
    497,387.10/745,456.70 = 212,743.64/x
  3. Step 3: Cross multiply
    497,387.10x = 745,456.70 × 212,743.64
  4. Step 4: Simplify right side
    497,387.10x = 158,591,171,820.39
  5. Step 5: Solve for x
    x = 158,591,171,820.39/497,387.10
  6. Step 6: Final answer
    x = 318,848.58

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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.