Home / 1,120,789.50-1,546,689.51-718,381.50

Finding the Fourth Proportional to 1,120,789.50, 1,546,689.51 and 718,381.50

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Solution

The fourth proportional to 1,120,789.50, 1,546,689.51 and 718,381.50 is: 991,366.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,789.50 : 1,546,689.51 = 718,381.50 : x
  2. Step 2: Convert to fraction form
    1,120,789.50/1,546,689.51 = 718,381.50/x
  3. Step 3: Cross multiply
    1,120,789.50x = 1,546,689.51 × 718,381.50
  4. Step 4: Simplify right side
    1,120,789.50x = 1,111,113,130,228.07
  5. Step 5: Solve for x
    x = 1,111,113,130,228.07/1,120,789.50
  6. Step 6: Final answer
    x = 991,366.47

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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.