Home / 750,686.41-1,036,021.71-428,445.31

Finding the Fourth Proportional to 750,686.41, 1,036,021.71 and 428,445.31

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Solution

The fourth proportional to 750,686.41, 1,036,021.71 and 428,445.31 is: 591,297.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,686.41 : 1,036,021.71 = 428,445.31 : x
  2. Step 2: Convert to fraction form
    750,686.41/1,036,021.71 = 428,445.31/x
  3. Step 3: Cross multiply
    750,686.41x = 1,036,021.71 × 428,445.31
  4. Step 4: Simplify right side
    750,686.41x = 443,878,642,707.68
  5. Step 5: Solve for x
    x = 443,878,642,707.68/750,686.41
  6. Step 6: Final answer
    x = 591,297.03

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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.