Home / 907,418.86-1,361,128.33-338,844.36

Finding the Fourth Proportional to 907,418.86, 1,361,128.33 and 338,844.36

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Solution

The fourth proportional to 907,418.86, 1,361,128.33 and 338,844.36 is: 508,266.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,418.86 : 1,361,128.33 = 338,844.36 : x
  2. Step 2: Convert to fraction form
    907,418.86/1,361,128.33 = 338,844.36/x
  3. Step 3: Cross multiply
    907,418.86x = 1,361,128.33 × 338,844.36
  4. Step 4: Simplify right side
    907,418.86x = 461,210,649,356.86
  5. Step 5: Solve for x
    x = 461,210,649,356.86/907,418.86
  6. Step 6: Final answer
    x = 508,266.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.