Home / 1,262,407.20-1,742,123.88-718,542.98

Finding the Fourth Proportional to 1,262,407.20, 1,742,123.88 and 718,542.98

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Solution

The fourth proportional to 1,262,407.20, 1,742,123.88 and 718,542.98 is: 991,590.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,262,407.20 : 1,742,123.88 = 718,542.98 : x
  2. Step 2: Convert to fraction form
    1,262,407.20/1,742,123.88 = 718,542.98/x
  3. Step 3: Cross multiply
    1,262,407.20x = 1,742,123.88 × 718,542.98
  4. Step 4: Simplify right side
    1,262,407.20x = 1,251,790,875,553.74
  5. Step 5: Solve for x
    x = 1,251,790,875,553.74/1,262,407.20
  6. Step 6: Final answer
    x = 991,590.41

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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.