Home / 711,405.56-1,067,110.16-290,681.44

Finding the Fourth Proportional to 711,405.56, 1,067,110.16 and 290,681.44

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Solution

The fourth proportional to 711,405.56, 1,067,110.16 and 290,681.44 is: 436,022.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,405.56 : 1,067,110.16 = 290,681.44 : x
  2. Step 2: Convert to fraction form
    711,405.56/1,067,110.16 = 290,681.44/x
  3. Step 3: Cross multiply
    711,405.56x = 1,067,110.16 × 290,681.44
  4. Step 4: Simplify right side
    711,405.56x = 310,189,117,947.43
  5. Step 5: Solve for x
    x = 310,189,117,947.43/711,405.56
  6. Step 6: Final answer
    x = 436,022.90

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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.