Home / 905,108.88-1,249,015.92-502,726.80

Finding the Fourth Proportional to 905,108.88, 1,249,015.92 and 502,726.80

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Solution

The fourth proportional to 905,108.88, 1,249,015.92 and 502,726.80 is: 693,743.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,108.88 : 1,249,015.92 = 502,726.80 : x
  2. Step 2: Convert to fraction form
    905,108.88/1,249,015.92 = 502,726.80/x
  3. Step 3: Cross multiply
    905,108.88x = 1,249,015.92 × 502,726.80
  4. Step 4: Simplify right side
    905,108.88x = 627,913,776,610.66
  5. Step 5: Solve for x
    x = 627,913,776,610.66/905,108.88
  6. Step 6: Final answer
    x = 693,743.91

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Double scale
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1.5x scale

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.