Home / 487,849.64-731,353.84-188,540.24

Finding the Fourth Proportional to 487,849.64, 731,353.84 and 188,540.24

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Solution

The fourth proportional to 487,849.64, 731,353.84 and 188,540.24 is: 282,647.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,849.64 : 731,353.84 = 188,540.24 : x
  2. Step 2: Convert to fraction form
    487,849.64/731,353.84 = 188,540.24/x
  3. Step 3: Cross multiply
    487,849.64x = 731,353.84 × 188,540.24
  4. Step 4: Simplify right side
    487,849.64x = 137,889,628,518.52
  5. Step 5: Solve for x
    x = 137,889,628,518.52/487,849.64
  6. Step 6: Final answer
    x = 282,647.80

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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.