Home / 869,125.40-1,302,132.90-744,709.40

Finding the Fourth Proportional to 869,125.40, 1,302,132.90 and 744,709.40

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Solution

The fourth proportional to 869,125.40, 1,302,132.90 and 744,709.40 is: 1,115,731.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,125.40 : 1,302,132.90 = 744,709.40 : x
  2. Step 2: Convert to fraction form
    869,125.40/1,302,132.90 = 744,709.40/x
  3. Step 3: Cross multiply
    869,125.40x = 1,302,132.90 × 744,709.40
  4. Step 4: Simplify right side
    869,125.40x = 969,710,610,679.26
  5. Step 5: Solve for x
    x = 969,710,610,679.26/869,125.40
  6. Step 6: Final answer
    x = 1,115,731.53

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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.