Home / 690,014.08-1,035,021.04-191,378.08

Finding the Fourth Proportional to 690,014.08, 1,035,021.04 and 191,378.08

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Solution

The fourth proportional to 690,014.08, 1,035,021.04 and 191,378.08 is: 287,067.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,014.08 : 1,035,021.04 = 191,378.08 : x
  2. Step 2: Convert to fraction form
    690,014.08/1,035,021.04 = 191,378.08/x
  3. Step 3: Cross multiply
    690,014.08x = 1,035,021.04 × 191,378.08
  4. Step 4: Simplify right side
    690,014.08x = 198,080,339,394.80
  5. Step 5: Solve for x
    x = 198,080,339,394.80/690,014.08
  6. Step 6: Final answer
    x = 287,067.10

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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.