Home / 1,207,615.20-1,811,365.20-408,818.40

Finding the Fourth Proportional to 1,207,615.20, 1,811,365.20 and 408,818.40

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Solution

The fourth proportional to 1,207,615.20, 1,811,365.20 and 408,818.40 is: 613,208.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,615.20 : 1,811,365.20 = 408,818.40 : x
  2. Step 2: Convert to fraction form
    1,207,615.20/1,811,365.20 = 408,818.40/x
  3. Step 3: Cross multiply
    1,207,615.20x = 1,811,365.20 × 408,818.40
  4. Step 4: Simplify right side
    1,207,615.20x = 740,519,422,879.68
  5. Step 5: Solve for x
    x = 740,519,422,879.68/1,207,615.20
  6. Step 6: Final answer
    x = 613,208.10

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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.