Home / 704,039.20-1,056,058.80-405,440.80

Finding the Fourth Proportional to 704,039.20, 1,056,058.80 and 405,440.80

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Solution

The fourth proportional to 704,039.20, 1,056,058.80 and 405,440.80 is: 608,161.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,039.20 : 1,056,058.80 = 405,440.80 : x
  2. Step 2: Convert to fraction form
    704,039.20/1,056,058.80 = 405,440.80/x
  3. Step 3: Cross multiply
    704,039.20x = 1,056,058.80 × 405,440.80
  4. Step 4: Simplify right side
    704,039.20x = 428,169,324,719.04
  5. Step 5: Solve for x
    x = 428,169,324,719.04/704,039.20
  6. Step 6: Final answer
    x = 608,161.20

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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.