Home / 1,526,540.80-2,289,811.20-389,300.80

Finding the Fourth Proportional to 1,526,540.80, 2,289,811.20 and 389,300.80

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Solution

The fourth proportional to 1,526,540.80, 2,289,811.20 and 389,300.80 is: 583,951.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,526,540.80 : 2,289,811.20 = 389,300.80 : x
  2. Step 2: Convert to fraction form
    1,526,540.80/2,289,811.20 = 389,300.80/x
  3. Step 3: Cross multiply
    1,526,540.80x = 2,289,811.20 × 389,300.80
  4. Step 4: Simplify right side
    1,526,540.80x = 891,425,332,008.96
  5. Step 5: Solve for x
    x = 891,425,332,008.96/1,526,540.80
  6. Step 6: Final answer
    x = 583,951.20

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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.