Home / 434,637.60-652,067.28-135,120.72

Finding the Fourth Proportional to 434,637.60, 652,067.28 and 135,120.72

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Solution

The fourth proportional to 434,637.60, 652,067.28 and 135,120.72 is: 202,715.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,637.60 : 652,067.28 = 135,120.72 : x
  2. Step 2: Convert to fraction form
    434,637.60/652,067.28 = 135,120.72/x
  3. Step 3: Cross multiply
    434,637.60x = 652,067.28 × 135,120.72
  4. Step 4: Simplify right side
    434,637.60x = 88,107,800,362.04
  5. Step 5: Solve for x
    x = 88,107,800,362.04/434,637.60
  6. Step 6: Final answer
    x = 202,715.55

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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.