Home / 921,685.22-1,382,228.84-353,036.06

Finding the Fourth Proportional to 921,685.22, 1,382,228.84 and 353,036.06

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Solution

The fourth proportional to 921,685.22, 1,382,228.84 and 353,036.06 is: 529,439.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,685.22 : 1,382,228.84 = 353,036.06 : x
  2. Step 2: Convert to fraction form
    921,685.22/1,382,228.84 = 353,036.06/x
  3. Step 3: Cross multiply
    921,685.22x = 1,382,228.84 × 353,036.06
  4. Step 4: Simplify right side
    921,685.22x = 487,976,615,015.65
  5. Step 5: Solve for x
    x = 487,976,615,015.65/921,685.22
  6. Step 6: Final answer
    x = 529,439.56

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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.