Home / 711,772.30-1,067,111.70-357,040.90

Finding the Fourth Proportional to 711,772.30, 1,067,111.70 and 357,040.90

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Solution

The fourth proportional to 711,772.30, 1,067,111.70 and 357,040.90 is: 535,287.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,772.30 : 1,067,111.70 = 357,040.90 : x
  2. Step 2: Convert to fraction form
    711,772.30/1,067,111.70 = 357,040.90/x
  3. Step 3: Cross multiply
    711,772.30x = 1,067,111.70 × 357,040.90
  4. Step 4: Simplify right side
    711,772.30x = 381,002,521,768.53
  5. Step 5: Solve for x
    x = 381,002,521,768.53/711,772.30
  6. Step 6: Final answer
    x = 535,287.09

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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.