Home / 1,126,478.60-1,689,717.90-825,328.70

Finding the Fourth Proportional to 1,126,478.60, 1,689,717.90 and 825,328.70

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Solution

The fourth proportional to 1,126,478.60, 1,689,717.90 and 825,328.70 is: 1,237,993.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,126,478.60 : 1,689,717.90 = 825,328.70 : x
  2. Step 2: Convert to fraction form
    1,126,478.60/1,689,717.90 = 825,328.70/x
  3. Step 3: Cross multiply
    1,126,478.60x = 1,689,717.90 × 825,328.70
  4. Step 4: Simplify right side
    1,126,478.60x = 1,394,572,677,773.73
  5. Step 5: Solve for x
    x = 1,394,572,677,773.73/1,126,478.60
  6. Step 6: Final answer
    x = 1,237,993.05

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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.