Home / 1,390,377.55-2,086,355.26-750,672.76

Finding the Fourth Proportional to 1,390,377.55, 2,086,355.26 and 750,672.76

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Solution

The fourth proportional to 1,390,377.55, 2,086,355.26 and 750,672.76 is: 1,126,435.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,390,377.55 : 2,086,355.26 = 750,672.76 : x
  2. Step 2: Convert to fraction form
    1,390,377.55/2,086,355.26 = 750,672.76/x
  3. Step 3: Cross multiply
    1,390,377.55x = 2,086,355.26 × 750,672.76
  4. Step 4: Simplify right side
    1,390,377.55x = 1,566,170,061,364.72
  5. Step 5: Solve for x
    x = 1,566,170,061,364.72/1,390,377.55
  6. Step 6: Final answer
    x = 1,126,435.09

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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.