Home / 1,555,064.80-2,332,597.20-1,289,344.30

Finding the Fourth Proportional to 1,555,064.80, 2,332,597.20 and 1,289,344.30

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Solution

The fourth proportional to 1,555,064.80, 2,332,597.20 and 1,289,344.30 is: 1,934,016.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,555,064.80 : 2,332,597.20 = 1,289,344.30 : x
  2. Step 2: Convert to fraction form
    1,555,064.80/2,332,597.20 = 1,289,344.30/x
  3. Step 3: Cross multiply
    1,555,064.80x = 2,332,597.20 × 1,289,344.30
  4. Step 4: Simplify right side
    1,555,064.80x = 3,007,520,904,015.96
  5. Step 5: Solve for x
    x = 3,007,520,904,015.96/1,555,064.80
  6. Step 6: Final answer
    x = 1,934,016.45

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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.