Home / 1,262,314.80-1,742,008.28-689,371.83

Finding the Fourth Proportional to 1,262,314.80, 1,742,008.28 and 689,371.83

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Solution

The fourth proportional to 1,262,314.80, 1,742,008.28 and 689,371.83 is: 951,340.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,262,314.80 : 1,742,008.28 = 689,371.83 : x
  2. Step 2: Convert to fraction form
    1,262,314.80/1,742,008.28 = 689,371.83/x
  3. Step 3: Cross multiply
    1,262,314.80x = 1,742,008.28 × 689,371.83
  4. Step 4: Simplify right side
    1,262,314.80x = 1,200,891,432,411.89
  5. Step 5: Solve for x
    x = 1,200,891,432,411.89/1,262,314.80
  6. Step 6: Final answer
    x = 951,340.69

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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.