Home / 711,514.40-1,066,906.80-212,813.60

Finding the Fourth Proportional to 711,514.40, 1,066,906.80 and 212,813.60

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Solution

The fourth proportional to 711,514.40, 1,066,906.80 and 212,813.60 is: 319,111.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,514.40 : 1,066,906.80 = 212,813.60 : x
  2. Step 2: Convert to fraction form
    711,514.40/1,066,906.80 = 212,813.60/x
  3. Step 3: Cross multiply
    711,514.40x = 1,066,906.80 × 212,813.60
  4. Step 4: Simplify right side
    711,514.40x = 227,052,276,972.48
  5. Step 5: Solve for x
    x = 227,052,276,972.48/711,514.40
  6. Step 6: Final answer
    x = 319,111.29

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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.