Home / 487,828.68-731,952.30-188,519.45

Finding the Fourth Proportional to 487,828.68, 731,952.30 and 188,519.45

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Solution

The fourth proportional to 487,828.68, 731,952.30 and 188,519.45 is: 282,860.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,828.68 : 731,952.30 = 188,519.45 : x
  2. Step 2: Convert to fraction form
    487,828.68/731,952.30 = 188,519.45/x
  3. Step 3: Cross multiply
    487,828.68x = 731,952.30 × 188,519.45
  4. Step 4: Simplify right side
    487,828.68x = 137,987,245,126.23
  5. Step 5: Solve for x
    x = 137,987,245,126.23/487,828.68
  6. Step 6: Final answer
    x = 282,860.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.