Home / 1,086,474.40-1,629,711.60-287,879.20

Finding the Fourth Proportional to 1,086,474.40, 1,629,711.60 and 287,879.20

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Solution

The fourth proportional to 1,086,474.40, 1,629,711.60 and 287,879.20 is: 431,818.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086,474.40 : 1,629,711.60 = 287,879.20 : x
  2. Step 2: Convert to fraction form
    1,086,474.40/1,629,711.60 = 287,879.20/x
  3. Step 3: Cross multiply
    1,086,474.40x = 1,629,711.60 × 287,879.20
  4. Step 4: Simplify right side
    1,086,474.40x = 469,160,071,638.72
  5. Step 5: Solve for x
    x = 469,160,071,638.72/1,086,474.40
  6. Step 6: Final answer
    x = 431,818.80

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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.