Home / 912,271.97-1,258,659-636,622.49

Finding the Fourth Proportional to 912,271.97, 1,258,659 and 636,622.49

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Solution

The fourth proportional to 912,271.97, 1,258,659 and 636,622.49 is: 878,346.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,271.97 : 1,258,659 = 636,622.49 : x
  2. Step 2: Convert to fraction form
    912,271.97/1,258,659 = 636,622.49/x
  3. Step 3: Cross multiply
    912,271.97x = 1,258,659 × 636,622.49
  4. Step 4: Simplify right side
    912,271.97x = 801,290,620,347.62
  5. Step 5: Solve for x
    x = 801,290,620,347.62/912,271.97
  6. Step 6: Final answer
    x = 878,346.21

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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.