Home / 1,189,187.02-1,641,079.21-679,900.06

Finding the Fourth Proportional to 1,189,187.02, 1,641,079.21 and 679,900.06

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Solution

The fourth proportional to 1,189,187.02, 1,641,079.21 and 679,900.06 is: 938,262.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,187.02 : 1,641,079.21 = 679,900.06 : x
  2. Step 2: Convert to fraction form
    1,189,187.02/1,641,079.21 = 679,900.06/x
  3. Step 3: Cross multiply
    1,189,187.02x = 1,641,079.21 × 679,900.06
  4. Step 4: Simplify right side
    1,189,187.02x = 1,115,769,853,343.75
  5. Step 5: Solve for x
    x = 1,115,769,853,343.75/1,189,187.02
  6. Step 6: Final answer
    x = 938,262.72

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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.