Home / 711,415.51-1,067,125.07-290,691.39

Finding the Fourth Proportional to 711,415.51, 1,067,125.07 and 290,691.39

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Solution

The fourth proportional to 711,415.51, 1,067,125.07 and 290,691.39 is: 436,037.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,415.51 : 1,067,125.07 = 290,691.39 : x
  2. Step 2: Convert to fraction form
    711,415.51/1,067,125.07 = 290,691.39/x
  3. Step 3: Cross multiply
    711,415.51x = 1,067,125.07 × 290,691.39
  4. Step 4: Simplify right side
    711,415.51x = 310,204,069,902.15
  5. Step 5: Solve for x
    x = 310,204,069,902.15/711,415.51
  6. Step 6: Final answer
    x = 436,037.82

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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.