Home / 398,776.05-598,277.07-162,288.45

Finding the Fourth Proportional to 398,776.05, 598,277.07 and 162,288.45

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Solution

The fourth proportional to 398,776.05, 598,277.07 and 162,288.45 is: 243,478.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,776.05 : 598,277.07 = 162,288.45 : x
  2. Step 2: Convert to fraction form
    398,776.05/598,277.07 = 162,288.45/x
  3. Step 3: Cross multiply
    398,776.05x = 598,277.07 × 162,288.45
  4. Step 4: Simplify right side
    398,776.05x = 97,093,458,360.84
  5. Step 5: Solve for x
    x = 97,093,458,360.84/398,776.05
  6. Step 6: Final answer
    x = 243,478.66

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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.