Home / 1,086,430.40-1,628,479.20-412,251.20

Finding the Fourth Proportional to 1,086,430.40, 1,628,479.20 and 412,251.20

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Solution

The fourth proportional to 1,086,430.40, 1,628,479.20 and 412,251.20 is: 617,934.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086,430.40 : 1,628,479.20 = 412,251.20 : x
  2. Step 2: Convert to fraction form
    1,086,430.40/1,628,479.20 = 412,251.20/x
  3. Step 3: Cross multiply
    1,086,430.40x = 1,628,479.20 × 412,251.20
  4. Step 4: Simplify right side
    1,086,430.40x = 671,342,504,375.04
  5. Step 5: Solve for x
    x = 671,342,504,375.04/1,086,430.40
  6. Step 6: Final answer
    x = 617,934.20

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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.