Home / 915,230.88-1,262,269.80-644,196

Finding the Fourth Proportional to 915,230.88, 1,262,269.80 and 644,196

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Solution

The fourth proportional to 915,230.88, 1,262,269.80 and 644,196 is: 888,463.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,230.88 : 1,262,269.80 = 644,196 : x
  2. Step 2: Convert to fraction form
    915,230.88/1,262,269.80 = 644,196/x
  3. Step 3: Cross multiply
    915,230.88x = 1,262,269.80 × 644,196
  4. Step 4: Simplify right side
    915,230.88x = 813,149,156,080.80
  5. Step 5: Solve for x
    x = 813,149,156,080.80/915,230.88
  6. Step 6: Final answer
    x = 888,463.42

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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.