Home / 492,001.78-738,106.26-278,871.79

Finding the Fourth Proportional to 492,001.78, 738,106.26 and 278,871.79

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Solution

The fourth proportional to 492,001.78, 738,106.26 and 278,871.79 is: 418,366.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,001.78 : 738,106.26 = 278,871.79 : x
  2. Step 2: Convert to fraction form
    492,001.78/738,106.26 = 278,871.79/x
  3. Step 3: Cross multiply
    492,001.78x = 738,106.26 × 278,871.79
  4. Step 4: Simplify right side
    492,001.78x = 205,837,013,936.41
  5. Step 5: Solve for x
    x = 205,837,013,936.41/492,001.78
  6. Step 6: Final answer
    x = 418,366.40

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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.