Home / 918,320.20-1,374,758.70-682,707.40

Finding the Fourth Proportional to 918,320.20, 1,374,758.70 and 682,707.40

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Solution

The fourth proportional to 918,320.20, 1,374,758.70 and 682,707.40 is: 1,022,037.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,320.20 : 1,374,758.70 = 682,707.40 : x
  2. Step 2: Convert to fraction form
    918,320.20/1,374,758.70 = 682,707.40/x
  3. Step 3: Cross multiply
    918,320.20x = 1,374,758.70 × 682,707.40
  4. Step 4: Simplify right side
    918,320.20x = 938,557,937,704.38
  5. Step 5: Solve for x
    x = 938,557,937,704.38/918,320.20
  6. Step 6: Final answer
    x = 1,022,037.78

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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.