Home / 905,790.28-1,249,976.57-497,883.36

Finding the Fourth Proportional to 905,790.28, 1,249,976.57 and 497,883.36

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Solution

The fourth proportional to 905,790.28, 1,249,976.57 and 497,883.36 is: 687,071.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,790.28 : 1,249,976.57 = 497,883.36 : x
  2. Step 2: Convert to fraction form
    905,790.28/1,249,976.57 = 497,883.36/x
  3. Step 3: Cross multiply
    905,790.28x = 1,249,976.57 × 497,883.36
  4. Step 4: Simplify right side
    905,790.28x = 622,342,538,019.82
  5. Step 5: Solve for x
    x = 622,342,538,019.82/905,790.28
  6. Step 6: Final answer
    x = 687,071.33

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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.