Home / 2,145,291.40-3,217,895.70-865,865.08

Finding the Fourth Proportional to 2,145,291.40, 3,217,895.70 and 865,865.08

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Solution

The fourth proportional to 2,145,291.40, 3,217,895.70 and 865,865.08 is: 1,298,780.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,145,291.40 : 3,217,895.70 = 865,865.08 : x
  2. Step 2: Convert to fraction form
    2,145,291.40/3,217,895.70 = 865,865.08/x
  3. Step 3: Cross multiply
    2,145,291.40x = 3,217,895.70 × 865,865.08
  4. Step 4: Simplify right side
    2,145,291.40x = 2,786,263,517,712.16
  5. Step 5: Solve for x
    x = 2,786,263,517,712.16/2,145,291.40
  6. Step 6: Final answer
    x = 1,298,780.91

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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.