Home / 1,207,141.23-1,665,999.72-723,972.18

Finding the Fourth Proportional to 1,207,141.23, 1,665,999.72 and 723,972.18

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Solution

The fourth proportional to 1,207,141.23, 1,665,999.72 and 723,972.18 is: 999,168.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,141.23 : 1,665,999.72 = 723,972.18 : x
  2. Step 2: Convert to fraction form
    1,207,141.23/1,665,999.72 = 723,972.18/x
  3. Step 3: Cross multiply
    1,207,141.23x = 1,665,999.72 × 723,972.18
  4. Step 4: Simplify right side
    1,207,141.23x = 1,206,137,448,080.21
  5. Step 5: Solve for x
    x = 1,206,137,448,080.21/1,207,141.23
  6. Step 6: Final answer
    x = 999,168.47

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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.