Home / 497,078.28-685,943.64-282,190.14

Finding the Fourth Proportional to 497,078.28, 685,943.64 and 282,190.14

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Solution

The fourth proportional to 497,078.28, 685,943.64 and 282,190.14 is: 389,408.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,078.28 : 685,943.64 = 282,190.14 : x
  2. Step 2: Convert to fraction form
    497,078.28/685,943.64 = 282,190.14/x
  3. Step 3: Cross multiply
    497,078.28x = 685,943.64 × 282,190.14
  4. Step 4: Simplify right side
    497,078.28x = 193,566,531,803.71
  5. Step 5: Solve for x
    x = 193,566,531,803.71/497,078.28
  6. Step 6: Final answer
    x = 389,408.55

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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.