Home / 500,980.14-691,278.77-304,646.46

Finding the Fourth Proportional to 500,980.14, 691,278.77 and 304,646.46

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Solution

The fourth proportional to 500,980.14, 691,278.77 and 304,646.46 is: 420,367.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,980.14 : 691,278.77 = 304,646.46 : x
  2. Step 2: Convert to fraction form
    500,980.14/691,278.77 = 304,646.46/x
  3. Step 3: Cross multiply
    500,980.14x = 691,278.77 × 304,646.46
  4. Step 4: Simplify right side
    500,980.14x = 210,595,628,630.42
  5. Step 5: Solve for x
    x = 210,595,628,630.42/500,980.14
  6. Step 6: Final answer
    x = 420,367.22

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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.