Home / 1,427,416.65-1,969,515.92-815,373.77

Finding the Fourth Proportional to 1,427,416.65, 1,969,515.92 and 815,373.77

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Solution

The fourth proportional to 1,427,416.65, 1,969,515.92 and 815,373.77 is: 1,125,033.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427,416.65 : 1,969,515.92 = 815,373.77 : x
  2. Step 2: Convert to fraction form
    1,427,416.65/1,969,515.92 = 815,373.77/x
  3. Step 3: Cross multiply
    1,427,416.65x = 1,969,515.92 × 815,373.77
  4. Step 4: Simplify right side
    1,427,416.65x = 1,605,891,612,956.27
  5. Step 5: Solve for x
    x = 1,605,891,612,956.27/1,427,416.65
  6. Step 6: Final answer
    x = 1,125,033.54

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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.