Home / 1,272,721.59-1,756,389.06-691,983.80

Finding the Fourth Proportional to 1,272,721.59, 1,756,389.06 and 691,983.80

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Solution

The fourth proportional to 1,272,721.59, 1,756,389.06 and 691,983.80 is: 954,955.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,721.59 : 1,756,389.06 = 691,983.80 : x
  2. Step 2: Convert to fraction form
    1,272,721.59/1,756,389.06 = 691,983.80/x
  3. Step 3: Cross multiply
    1,272,721.59x = 1,756,389.06 × 691,983.80
  4. Step 4: Simplify right side
    1,272,721.59x = 1,215,392,767,235.28
  5. Step 5: Solve for x
    x = 1,215,392,767,235.28/1,272,721.59
  6. Step 6: Final answer
    x = 954,955.72

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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.