Home / 807,540.10-1,211,018.55-408,048.10

Finding the Fourth Proportional to 807,540.10, 1,211,018.55 and 408,048.10

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Solution

The fourth proportional to 807,540.10, 1,211,018.55 and 408,048.10 is: 611,924.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,540.10 : 1,211,018.55 = 408,048.10 : x
  2. Step 2: Convert to fraction form
    807,540.10/1,211,018.55 = 408,048.10/x
  3. Step 3: Cross multiply
    807,540.10x = 1,211,018.55 × 408,048.10
  4. Step 4: Simplify right side
    807,540.10x = 494,153,818,392.26
  5. Step 5: Solve for x
    x = 494,153,818,392.26/807,540.10
  6. Step 6: Final answer
    x = 611,924.81

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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.