Home / 783,074.36-1,080,385.62-438,860

Finding the Fourth Proportional to 783,074.36, 1,080,385.62 and 438,860

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Solution

The fourth proportional to 783,074.36, 1,080,385.62 and 438,860 is: 605,482.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,074.36 : 1,080,385.62 = 438,860 : x
  2. Step 2: Convert to fraction form
    783,074.36/1,080,385.62 = 438,860/x
  3. Step 3: Cross multiply
    783,074.36x = 1,080,385.62 × 438,860
  4. Step 4: Simplify right side
    783,074.36x = 474,138,033,193.20
  5. Step 5: Solve for x
    x = 474,138,033,193.20/783,074.36
  6. Step 6: Final answer
    x = 605,482.77

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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.