Home / 1,215,049.40-1,822,136.70-615,811.40

Finding the Fourth Proportional to 1,215,049.40, 1,822,136.70 and 615,811.40

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Solution

The fourth proportional to 1,215,049.40, 1,822,136.70 and 615,811.40 is: 923,495.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,049.40 : 1,822,136.70 = 615,811.40 : x
  2. Step 2: Convert to fraction form
    1,215,049.40/1,822,136.70 = 615,811.40/x
  3. Step 3: Cross multiply
    1,215,049.40x = 1,822,136.70 × 615,811.40
  4. Step 4: Simplify right side
    1,215,049.40x = 1,122,092,552,218.38
  5. Step 5: Solve for x
    x = 1,122,092,552,218.38/1,215,049.40
  6. Step 6: Final answer
    x = 923,495.42

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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.