Home / 1,324,612-1,827,973.20-721,004.32

Finding the Fourth Proportional to 1,324,612, 1,827,973.20 and 721,004.32

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Solution

The fourth proportional to 1,324,612, 1,827,973.20 and 721,004.32 is: 994,990.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,324,612 : 1,827,973.20 = 721,004.32 : x
  2. Step 2: Convert to fraction form
    1,324,612/1,827,973.20 = 721,004.32/x
  3. Step 3: Cross multiply
    1,324,612x = 1,827,973.20 × 721,004.32
  4. Step 4: Simplify right side
    1,324,612x = 1,317,976,574,044.22
  5. Step 5: Solve for x
    x = 1,317,976,574,044.22/1,324,612
  6. Step 6: Final answer
    x = 994,990.66

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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.