Home / 693,354.80-1,040,147.40-272,644.40

Finding the Fourth Proportional to 693,354.80, 1,040,147.40 and 272,644.40

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Solution

The fourth proportional to 693,354.80, 1,040,147.40 and 272,644.40 is: 409,011.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,354.80 : 1,040,147.40 = 272,644.40 : x
  2. Step 2: Convert to fraction form
    693,354.80/1,040,147.40 = 272,644.40/x
  3. Step 3: Cross multiply
    693,354.80x = 1,040,147.40 × 272,644.40
  4. Step 4: Simplify right side
    693,354.80x = 283,590,363,784.56
  5. Step 5: Solve for x
    x = 283,590,363,784.56/693,354.80
  6. Step 6: Final answer
    x = 409,011.90

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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.