Home / 1,189,221.02-1,641,126.12-679,934.06

Finding the Fourth Proportional to 1,189,221.02, 1,641,126.12 and 679,934.06

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Solution

The fourth proportional to 1,189,221.02, 1,641,126.12 and 679,934.06 is: 938,309.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,221.02 : 1,641,126.12 = 679,934.06 : x
  2. Step 2: Convert to fraction form
    1,189,221.02/1,641,126.12 = 679,934.06/x
  3. Step 3: Cross multiply
    1,189,221.02x = 1,641,126.12 × 679,934.06
  4. Step 4: Simplify right side
    1,189,221.02x = 1,115,857,545,743.65
  5. Step 5: Solve for x
    x = 1,115,857,545,743.65/1,189,221.02
  6. Step 6: Final answer
    x = 938,309.64

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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.