Home / 1,262,695.70-1,742,087.85-718,695.38

Finding the Fourth Proportional to 1,262,695.70, 1,742,087.85 and 718,695.38

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Solution

The fourth proportional to 1,262,695.70, 1,742,087.85 and 718,695.38 is: 991,553.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,262,695.70 : 1,742,087.85 = 718,695.38 : x
  2. Step 2: Convert to fraction form
    1,262,695.70/1,742,087.85 = 718,695.38/x
  3. Step 3: Cross multiply
    1,262,695.70x = 1,742,087.85 × 718,695.38
  4. Step 4: Simplify right side
    1,262,695.70x = 1,252,030,489,349.13
  5. Step 5: Solve for x
    x = 1,252,030,489,349.13/1,262,695.70
  6. Step 6: Final answer
    x = 991,553.62

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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.