Home / 1,240,823.73-1,712,378.30-689,562.68

Finding the Fourth Proportional to 1,240,823.73, 1,712,378.30 and 689,562.68

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Solution

The fourth proportional to 1,240,823.73, 1,712,378.30 and 689,562.68 is: 951,619.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240,823.73 : 1,712,378.30 = 689,562.68 : x
  2. Step 2: Convert to fraction form
    1,240,823.73/1,712,378.30 = 689,562.68/x
  3. Step 3: Cross multiply
    1,240,823.73x = 1,712,378.30 × 689,562.68
  4. Step 4: Simplify right side
    1,240,823.73x = 1,180,792,157,712.14
  5. Step 5: Solve for x
    x = 1,180,792,157,712.14/1,240,823.73
  6. Step 6: Final answer
    x = 951,619.58

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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.