Home / 874,384.80-1,206,655.44-492,418.08

Finding the Fourth Proportional to 874,384.80, 1,206,655.44 and 492,418.08

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Solution

The fourth proportional to 874,384.80, 1,206,655.44 and 492,418.08 is: 679,539.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,384.80 : 1,206,655.44 = 492,418.08 : x
  2. Step 2: Convert to fraction form
    874,384.80/1,206,655.44 = 492,418.08/x
  3. Step 3: Cross multiply
    874,384.80x = 1,206,655.44 × 492,418.08
  4. Step 4: Simplify right side
    874,384.80x = 594,178,954,986.36
  5. Step 5: Solve for x
    x = 594,178,954,986.36/874,384.80
  6. Step 6: Final answer
    x = 679,539.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.