Home / 827,000.16-1,240,576.77-321,599.14

Finding the Fourth Proportional to 827,000.16, 1,240,576.77 and 321,599.14

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Solution

The fourth proportional to 827,000.16, 1,240,576.77 and 321,599.14 is: 482,428.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,000.16 : 1,240,576.77 = 321,599.14 : x
  2. Step 2: Convert to fraction form
    827,000.16/1,240,576.77 = 321,599.14/x
  3. Step 3: Cross multiply
    827,000.16x = 1,240,576.77 × 321,599.14
  4. Step 4: Simplify right side
    827,000.16x = 398,968,422,335.98
  5. Step 5: Solve for x
    x = 398,968,422,335.98/827,000.16
  6. Step 6: Final answer
    x = 482,428.47

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1.5x scale

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.