Home / 690,803.67-1,036,120.63-185,404.35

Finding the Fourth Proportional to 690,803.67, 1,036,120.63 and 185,404.35

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Solution

The fourth proportional to 690,803.67, 1,036,120.63 and 185,404.35 is: 278,083.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,803.67 : 1,036,120.63 = 185,404.35 : x
  2. Step 2: Convert to fraction form
    690,803.67/1,036,120.63 = 185,404.35/x
  3. Step 3: Cross multiply
    690,803.67x = 1,036,120.63 × 185,404.35
  4. Step 4: Simplify right side
    690,803.67x = 192,101,271,926.74
  5. Step 5: Solve for x
    x = 192,101,271,926.74/690,803.67
  6. Step 6: Final answer
    x = 278,083.75

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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.