Home / 881,438.82-1,216,386.09-479,030.82

Finding the Fourth Proportional to 881,438.82, 1,216,386.09 and 479,030.82

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Solution

The fourth proportional to 881,438.82, 1,216,386.09 and 479,030.82 is: 661,062.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,438.82 : 1,216,386.09 = 479,030.82 : x
  2. Step 2: Convert to fraction form
    881,438.82/1,216,386.09 = 479,030.82/x
  3. Step 3: Cross multiply
    881,438.82x = 1,216,386.09 × 479,030.82
  4. Step 4: Simplify right side
    881,438.82x = 582,686,426,129.29
  5. Step 5: Solve for x
    x = 582,686,426,129.29/881,438.82
  6. Step 6: Final answer
    x = 661,062.81

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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.