Home / 1,111,835.74-1,669,985.56-663,431.88

Finding the Fourth Proportional to 1,111,835.74, 1,669,985.56 and 663,431.88

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Solution

The fourth proportional to 1,111,835.74, 1,669,985.56 and 663,431.88 is: 996,479.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,111,835.74 : 1,669,985.56 = 663,431.88 : x
  2. Step 2: Convert to fraction form
    1,111,835.74/1,669,985.56 = 663,431.88/x
  3. Step 3: Cross multiply
    1,111,835.74x = 1,669,985.56 × 663,431.88
  4. Step 4: Simplify right side
    1,111,835.74x = 1,107,921,659,643.65
  5. Step 5: Solve for x
    x = 1,107,921,659,643.65/1,111,835.74
  6. Step 6: Final answer
    x = 996,479.62

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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.