Home / 497,309.28-686,268.36-304,040.67

Finding the Fourth Proportional to 497,309.28, 686,268.36 and 304,040.67

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Solution

The fourth proportional to 497,309.28, 686,268.36 and 304,040.67 is: 419,564.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,309.28 : 686,268.36 = 304,040.67 : x
  2. Step 2: Convert to fraction form
    497,309.28/686,268.36 = 304,040.67/x
  3. Step 3: Cross multiply
    497,309.28x = 686,268.36 × 304,040.67
  4. Step 4: Simplify right side
    497,309.28x = 208,653,491,974.20
  5. Step 5: Solve for x
    x = 208,653,491,974.20/497,309.28
  6. Step 6: Final answer
    x = 419,564.85

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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.