Home / 780,604.40-1,170,109.04-442,931.73

Finding the Fourth Proportional to 780,604.40, 1,170,109.04 and 442,931.73

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Solution

The fourth proportional to 780,604.40, 1,170,109.04 and 442,931.73 is: 663,945.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,604.40 : 1,170,109.04 = 442,931.73 : x
  2. Step 2: Convert to fraction form
    780,604.40/1,170,109.04 = 442,931.73/x
  3. Step 3: Cross multiply
    780,604.40x = 1,170,109.04 × 442,931.73
  4. Step 4: Simplify right side
    780,604.40x = 518,278,419,161.18
  5. Step 5: Solve for x
    x = 518,278,419,161.18/780,604.40
  6. Step 6: Final answer
    x = 663,945.04

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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.