Home / 874,234.80-1,310,963.40-401,065.20

Finding the Fourth Proportional to 874,234.80, 1,310,963.40 and 401,065.20

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Solution

The fourth proportional to 874,234.80, 1,310,963.40 and 401,065.20 is: 601,419.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,234.80 : 1,310,963.40 = 401,065.20 : x
  2. Step 2: Convert to fraction form
    874,234.80/1,310,963.40 = 401,065.20/x
  3. Step 3: Cross multiply
    874,234.80x = 1,310,963.40 × 401,065.20
  4. Step 4: Simplify right side
    874,234.80x = 525,781,798,213.68
  5. Step 5: Solve for x
    x = 525,781,798,213.68/874,234.80
  6. Step 6: Final answer
    x = 601,419.43

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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.