Home / 754,900.40-1,132,350.60-418,977.20

Finding the Fourth Proportional to 754,900.40, 1,132,350.60 and 418,977.20

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Solution

The fourth proportional to 754,900.40, 1,132,350.60 and 418,977.20 is: 628,465.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    754,900.40 : 1,132,350.60 = 418,977.20 : x
  2. Step 2: Convert to fraction form
    754,900.40/1,132,350.60 = 418,977.20/x
  3. Step 3: Cross multiply
    754,900.40x = 1,132,350.60 × 418,977.20
  4. Step 4: Simplify right side
    754,900.40x = 474,429,083,806.32
  5. Step 5: Solve for x
    x = 474,429,083,806.32/754,900.40
  6. Step 6: Final answer
    x = 628,465.80

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1.5x scale

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.