Home / 896,863.20-1,345,294.80-644,920.80

Finding the Fourth Proportional to 896,863.20, 1,345,294.80 and 644,920.80

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Solution

The fourth proportional to 896,863.20, 1,345,294.80 and 644,920.80 is: 967,381.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    896,863.20 : 1,345,294.80 = 644,920.80 : x
  2. Step 2: Convert to fraction form
    896,863.20/1,345,294.80 = 644,920.80/x
  3. Step 3: Cross multiply
    896,863.20x = 1,345,294.80 × 644,920.80
  4. Step 4: Simplify right side
    896,863.20x = 867,608,598,651.84
  5. Step 5: Solve for x
    x = 867,608,598,651.84/896,863.20
  6. Step 6: Final answer
    x = 967,381.20

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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.