Home / 872,920.40-1,309,380.60-651,736.40

Finding the Fourth Proportional to 872,920.40, 1,309,380.60 and 651,736.40

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Solution

The fourth proportional to 872,920.40, 1,309,380.60 and 651,736.40 is: 977,604.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,920.40 : 1,309,380.60 = 651,736.40 : x
  2. Step 2: Convert to fraction form
    872,920.40/1,309,380.60 = 651,736.40/x
  3. Step 3: Cross multiply
    872,920.40x = 1,309,380.60 × 651,736.40
  4. Step 4: Simplify right side
    872,920.40x = 853,370,998,473.84
  5. Step 5: Solve for x
    x = 853,370,998,473.84/872,920.40
  6. Step 6: Final answer
    x = 977,604.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.