Home / 914,388.78-1,261,843.17-506,489.28

Finding the Fourth Proportional to 914,388.78, 1,261,843.17 and 506,489.28

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Solution

The fourth proportional to 914,388.78, 1,261,843.17 and 506,489.28 is: 698,947.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    914,388.78 : 1,261,843.17 = 506,489.28 : x
  2. Step 2: Convert to fraction form
    914,388.78/1,261,843.17 = 506,489.28/x
  3. Step 3: Cross multiply
    914,388.78x = 1,261,843.17 × 506,489.28
  4. Step 4: Simplify right side
    914,388.78x = 639,110,038,646.22
  5. Step 5: Solve for x
    x = 639,110,038,646.22/914,388.78
  6. Step 6: Final answer
    x = 698,947.81

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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.