Home / 873,382.12-1,309,630.02-399,661.54

Finding the Fourth Proportional to 873,382.12, 1,309,630.02 and 399,661.54

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Solution

The fourth proportional to 873,382.12, 1,309,630.02 and 399,661.54 is: 599,289.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,382.12 : 1,309,630.02 = 399,661.54 : x
  2. Step 2: Convert to fraction form
    873,382.12/1,309,630.02 = 399,661.54/x
  3. Step 3: Cross multiply
    873,382.12x = 1,309,630.02 × 399,661.54
  4. Step 4: Simplify right side
    873,382.12x = 523,408,750,623.43
  5. Step 5: Solve for x
    x = 523,408,750,623.43/873,382.12
  6. Step 6: Final answer
    x = 599,289.52

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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.