Home / 1,009,212.40-1,513,818.60-743,491.90

Finding the Fourth Proportional to 1,009,212.40, 1,513,818.60 and 743,491.90

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Solution

The fourth proportional to 1,009,212.40, 1,513,818.60 and 743,491.90 is: 1,115,237.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,009,212.40 : 1,513,818.60 = 743,491.90 : x
  2. Step 2: Convert to fraction form
    1,009,212.40/1,513,818.60 = 743,491.90/x
  3. Step 3: Cross multiply
    1,009,212.40x = 1,513,818.60 × 743,491.90
  4. Step 4: Simplify right side
    1,009,212.40x = 1,125,511,867,169.34
  5. Step 5: Solve for x
    x = 1,125,511,867,169.34/1,009,212.40
  6. Step 6: Final answer
    x = 1,115,237.85

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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.