Home / 1,049,712.40-1,574,568.60-419,078.80

Finding the Fourth Proportional to 1,049,712.40, 1,574,568.60 and 419,078.80

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Solution

The fourth proportional to 1,049,712.40, 1,574,568.60 and 419,078.80 is: 628,618.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,049,712.40 : 1,574,568.60 = 419,078.80 : x
  2. Step 2: Convert to fraction form
    1,049,712.40/1,574,568.60 = 419,078.80/x
  3. Step 3: Cross multiply
    1,049,712.40x = 1,574,568.60 × 419,078.80
  4. Step 4: Simplify right side
    1,049,712.40x = 659,868,319,405.68
  5. Step 5: Solve for x
    x = 659,868,319,405.68/1,049,712.40
  6. Step 6: Final answer
    x = 628,618.20

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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.