Home / 875,123.20-1,313,721.60-868,902.40

Finding the Fourth Proportional to 875,123.20, 1,313,721.60 and 868,902.40

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Solution

The fourth proportional to 875,123.20, 1,313,721.60 and 868,902.40 is: 1,304,383.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,123.20 : 1,313,721.60 = 868,902.40 : x
  2. Step 2: Convert to fraction form
    875,123.20/1,313,721.60 = 868,902.40/x
  3. Step 3: Cross multiply
    875,123.20x = 1,313,721.60 × 868,902.40
  4. Step 4: Simplify right side
    875,123.20x = 1,141,495,851,171.84
  5. Step 5: Solve for x
    x = 1,141,495,851,171.84/875,123.20
  6. Step 6: Final answer
    x = 1,304,383.03

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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.