Home / 1,320,974.76-1,823,503.20-891,836.16

Finding the Fourth Proportional to 1,320,974.76, 1,823,503.20 and 891,836.16

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Solution

The fourth proportional to 1,320,974.76, 1,823,503.20 and 891,836.16 is: 1,231,110.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,974.76 : 1,823,503.20 = 891,836.16 : x
  2. Step 2: Convert to fraction form
    1,320,974.76/1,823,503.20 = 891,836.16/x
  3. Step 3: Cross multiply
    1,320,974.76x = 1,823,503.20 × 891,836.16
  4. Step 4: Simplify right side
    1,320,974.76x = 1,626,266,091,635.71
  5. Step 5: Solve for x
    x = 1,626,266,091,635.71/1,320,974.76
  6. Step 6: Final answer
    x = 1,231,110.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.