Home / 690,718.70-1,036,218.18-217,293.95

Finding the Fourth Proportional to 690,718.70, 1,036,218.18 and 217,293.95

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Solution

The fourth proportional to 690,718.70, 1,036,218.18 and 217,293.95 is: 325,985.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,718.70 : 1,036,218.18 = 217,293.95 : x
  2. Step 2: Convert to fraction form
    690,718.70/1,036,218.18 = 217,293.95/x
  3. Step 3: Cross multiply
    690,718.70x = 1,036,218.18 × 217,293.95
  4. Step 4: Simplify right side
    690,718.70x = 225,163,941,394.01
  5. Step 5: Solve for x
    x = 225,163,941,394.01/690,718.70
  6. Step 6: Final answer
    x = 325,985.01

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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.