Home / 693,627.20-1,040,018.40-272,398.40

Finding the Fourth Proportional to 693,627.20, 1,040,018.40 and 272,398.40

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Solution

The fourth proportional to 693,627.20, 1,040,018.40 and 272,398.40 is: 408,431.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,627.20 : 1,040,018.40 = 272,398.40 : x
  2. Step 2: Convert to fraction form
    693,627.20/1,040,018.40 = 272,398.40/x
  3. Step 3: Cross multiply
    693,627.20x = 1,040,018.40 × 272,398.40
  4. Step 4: Simplify right side
    693,627.20x = 283,299,348,130.56
  5. Step 5: Solve for x
    x = 283,299,348,130.56/693,627.20
  6. Step 6: Final answer
    x = 408,431.72

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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.