Home / 1,208,328.31-1,667,535.87-664,505.47

Finding the Fourth Proportional to 1,208,328.31, 1,667,535.87 and 664,505.47

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Solution

The fourth proportional to 1,208,328.31, 1,667,535.87 and 664,505.47 is: 917,041.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,328.31 : 1,667,535.87 = 664,505.47 : x
  2. Step 2: Convert to fraction form
    1,208,328.31/1,667,535.87 = 664,505.47/x
  3. Step 3: Cross multiply
    1,208,328.31x = 1,667,535.87 × 664,505.47
  4. Step 4: Simplify right side
    1,208,328.31x = 1,108,086,707,036.21
  5. Step 5: Solve for x
    x = 1,108,086,707,036.21/1,208,328.31
  6. Step 6: Final answer
    x = 917,041.09

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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.