Home / 403,623.38-556,418.37-282,389.06

Finding the Fourth Proportional to 403,623.38, 556,418.37 and 282,389.06

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Solution

The fourth proportional to 403,623.38, 556,418.37 and 282,389.06 is: 389,289.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,623.38 : 556,418.37 = 282,389.06 : x
  2. Step 2: Convert to fraction form
    403,623.38/556,418.37 = 282,389.06/x
  3. Step 3: Cross multiply
    403,623.38x = 556,418.37 × 282,389.06
  4. Step 4: Simplify right side
    403,623.38x = 157,126,460,471.03
  5. Step 5: Solve for x
    x = 157,126,460,471.03/403,623.38
  6. Step 6: Final answer
    x = 389,289.79

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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.