Home / 752,152.80-1,128,488.40-331,730.40

Finding the Fourth Proportional to 752,152.80, 1,128,488.40 and 331,730.40

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Solution

The fourth proportional to 752,152.80, 1,128,488.40 and 331,730.40 is: 497,709.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,152.80 : 1,128,488.40 = 331,730.40 : x
  2. Step 2: Convert to fraction form
    752,152.80/1,128,488.40 = 331,730.40/x
  3. Step 3: Cross multiply
    752,152.80x = 1,128,488.40 × 331,730.40
  4. Step 4: Simplify right side
    752,152.80x = 374,353,908,327.36
  5. Step 5: Solve for x
    x = 374,353,908,327.36/752,152.80
  6. Step 6: Final answer
    x = 497,709.92

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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.