Home / 928,953.12-1,393,095.30-321,576.45

Finding the Fourth Proportional to 928,953.12, 1,393,095.30 and 321,576.45

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Solution

The fourth proportional to 928,953.12, 1,393,095.30 and 321,576.45 is: 482,248.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,953.12 : 1,393,095.30 = 321,576.45 : x
  2. Step 2: Convert to fraction form
    928,953.12/1,393,095.30 = 321,576.45/x
  3. Step 3: Cross multiply
    928,953.12x = 1,393,095.30 × 321,576.45
  4. Step 4: Simplify right side
    928,953.12x = 447,986,641,085.69
  5. Step 5: Solve for x
    x = 447,986,641,085.69/928,953.12
  6. Step 6: Final answer
    x = 482,248.92

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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.