Home / 691,121.84-1,036,612.65-185,617.13

Finding the Fourth Proportional to 691,121.84, 1,036,612.65 and 185,617.13

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Solution

The fourth proportional to 691,121.84, 1,036,612.65 and 185,617.13 is: 278,406.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,121.84 : 1,036,612.65 = 185,617.13 : x
  2. Step 2: Convert to fraction form
    691,121.84/1,036,612.65 = 185,617.13/x
  3. Step 3: Cross multiply
    691,121.84x = 1,036,612.65 × 185,617.13
  4. Step 4: Simplify right side
    691,121.84x = 192,413,065,014.70
  5. Step 5: Solve for x
    x = 192,413,065,014.70/691,121.84
  6. Step 6: Final answer
    x = 278,406.87

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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.