Home / 915,734.73-1,262,257.50-721,828.02

Finding the Fourth Proportional to 915,734.73, 1,262,257.50 and 721,828.02

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Solution

The fourth proportional to 915,734.73, 1,262,257.50 and 721,828.02 is: 994,974.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,734.73 : 1,262,257.50 = 721,828.02 : x
  2. Step 2: Convert to fraction form
    915,734.73/1,262,257.50 = 721,828.02/x
  3. Step 3: Cross multiply
    915,734.73x = 1,262,257.50 × 721,828.02
  4. Step 4: Simplify right side
    915,734.73x = 911,132,831,955.15
  5. Step 5: Solve for x
    x = 911,132,831,955.15/915,734.73
  6. Step 6: Final answer
    x = 994,974.64

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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.