Home / 1,983,209.76-2,974,283.28-861,012

Finding the Fourth Proportional to 1,983,209.76, 2,974,283.28 and 861,012

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Solution

The fourth proportional to 1,983,209.76, 2,974,283.28 and 861,012 is: 1,291,287.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,983,209.76 : 2,974,283.28 = 861,012 : x
  2. Step 2: Convert to fraction form
    1,983,209.76/2,974,283.28 = 861,012/x
  3. Step 3: Cross multiply
    1,983,209.76x = 2,974,283.28 × 861,012
  4. Step 4: Simplify right side
    1,983,209.76x = 2,560,893,595,479.36
  5. Step 5: Solve for x
    x = 2,560,893,595,479.36/1,983,209.76
  6. Step 6: Final answer
    x = 1,291,287.31

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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.