Home / 693,559.40-1,040,079.90-272,748.20

Finding the Fourth Proportional to 693,559.40, 1,040,079.90 and 272,748.20

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Solution

The fourth proportional to 693,559.40, 1,040,079.90 and 272,748.20 is: 409,020.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,559.40 : 1,040,079.90 = 272,748.20 : x
  2. Step 2: Convert to fraction form
    693,559.40/1,040,079.90 = 272,748.20/x
  3. Step 3: Cross multiply
    693,559.40x = 1,040,079.90 × 272,748.20
  4. Step 4: Simplify right side
    693,559.40x = 283,679,920,581.18
  5. Step 5: Solve for x
    x = 283,679,920,581.18/693,559.40
  6. Step 6: Final answer
    x = 409,020.37

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1.5x scale

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.