Home / 820,549.84-1,231,374.57-288,072.46

Finding the Fourth Proportional to 820,549.84, 1,231,374.57 and 288,072.46

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Solution

The fourth proportional to 820,549.84, 1,231,374.57 and 288,072.46 is: 432,301.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,549.84 : 1,231,374.57 = 288,072.46 : x
  2. Step 2: Convert to fraction form
    820,549.84/1,231,374.57 = 288,072.46/x
  3. Step 3: Cross multiply
    820,549.84x = 1,231,374.57 × 288,072.46
  4. Step 4: Simplify right side
    820,549.84x = 354,725,101,561.34
  5. Step 5: Solve for x
    x = 354,725,101,561.34/820,549.84
  6. Step 6: Final answer
    x = 432,301.71

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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.