Home / 487,844.62-731,346.36-188,535.22

Finding the Fourth Proportional to 487,844.62, 731,346.36 and 188,535.22

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Solution

The fourth proportional to 487,844.62, 731,346.36 and 188,535.22 is: 282,640.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,844.62 : 731,346.36 = 188,535.22 : x
  2. Step 2: Convert to fraction form
    487,844.62/731,346.36 = 188,535.22/x
  3. Step 3: Cross multiply
    487,844.62x = 731,346.36 × 188,535.22
  4. Step 4: Simplify right side
    487,844.62x = 137,884,546,878.80
  5. Step 5: Solve for x
    x = 137,884,546,878.80/487,844.62
  6. Step 6: Final answer
    x = 282,640.29

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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.