Home / 690,747.45-1,036,261.30-217,322.70

Finding the Fourth Proportional to 690,747.45, 1,036,261.30 and 217,322.70

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Solution

The fourth proportional to 690,747.45, 1,036,261.30 and 217,322.70 is: 326,028.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,747.45 : 1,036,261.30 = 217,322.70 : x
  2. Step 2: Convert to fraction form
    690,747.45/1,036,261.30 = 217,322.70/x
  3. Step 3: Cross multiply
    690,747.45x = 1,036,261.30 × 217,322.70
  4. Step 4: Simplify right side
    690,747.45x = 225,203,103,621.51
  5. Step 5: Solve for x
    x = 225,203,103,621.51/690,747.45
  6. Step 6: Final answer
    x = 326,028.14

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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.