Home / 695,920.78-1,043,501.28-209,531.98

Finding the Fourth Proportional to 695,920.78, 1,043,501.28 and 209,531.98

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Solution

The fourth proportional to 695,920.78, 1,043,501.28 and 209,531.98 is: 314,183.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,920.78 : 1,043,501.28 = 209,531.98 : x
  2. Step 2: Convert to fraction form
    695,920.78/1,043,501.28 = 209,531.98/x
  3. Step 3: Cross multiply
    695,920.78x = 1,043,501.28 × 209,531.98
  4. Step 4: Simplify right side
    695,920.78x = 218,646,889,330.93
  5. Step 5: Solve for x
    x = 218,646,889,330.93/695,920.78
  6. Step 6: Final answer
    x = 314,183.59

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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.