Home / 1,262,341.30-1,742,044.86-689,398.34

Finding the Fourth Proportional to 1,262,341.30, 1,742,044.86 and 689,398.34

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Solution

The fourth proportional to 1,262,341.30, 1,742,044.86 and 689,398.34 is: 951,377.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,262,341.30 : 1,742,044.86 = 689,398.34 : x
  2. Step 2: Convert to fraction form
    1,262,341.30/1,742,044.86 = 689,398.34/x
  3. Step 3: Cross multiply
    1,262,341.30x = 1,742,044.86 × 689,398.34
  4. Step 4: Simplify right side
    1,262,341.30x = 1,200,962,834,689.53
  5. Step 5: Solve for x
    x = 1,200,962,834,689.53/1,262,341.30
  6. Step 6: Final answer
    x = 951,377.28

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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.