Home / 1,262,428.20-1,742,162.07-718,599

Finding the Fourth Proportional to 1,262,428.20, 1,742,162.07 and 718,599

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Solution

The fourth proportional to 1,262,428.20, 1,742,162.07 and 718,599 is: 991,672.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,262,428.20 : 1,742,162.07 = 718,599 : x
  2. Step 2: Convert to fraction form
    1,262,428.20/1,742,162.07 = 718,599/x
  3. Step 3: Cross multiply
    1,262,428.20x = 1,742,162.07 × 718,599
  4. Step 4: Simplify right side
    1,262,428.20x = 1,251,915,921,339.93
  5. Step 5: Solve for x
    x = 1,251,915,921,339.93/1,262,428.20
  6. Step 6: Final answer
    x = 991,672.97

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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.