Home / 807,995.32-1,115,033.28-445,425.36

Finding the Fourth Proportional to 807,995.32, 1,115,033.28 and 445,425.36

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Solution

The fourth proportional to 807,995.32, 1,115,033.28 and 445,425.36 is: 614,686.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,995.32 : 1,115,033.28 = 445,425.36 : x
  2. Step 2: Convert to fraction form
    807,995.32/1,115,033.28 = 445,425.36/x
  3. Step 3: Cross multiply
    807,995.32x = 1,115,033.28 × 445,425.36
  4. Step 4: Simplify right side
    807,995.32x = 496,664,100,155.98
  5. Step 5: Solve for x
    x = 496,664,100,155.98/807,995.32
  6. Step 6: Final answer
    x = 614,686.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.