Home / 690,065.71-1,035,210.92-203,797.06

Finding the Fourth Proportional to 690,065.71, 1,035,210.92 and 203,797.06

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Solution

The fourth proportional to 690,065.71, 1,035,210.92 and 203,797.06 is: 305,728.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,065.71 : 1,035,210.92 = 203,797.06 : x
  2. Step 2: Convert to fraction form
    690,065.71/1,035,210.92 = 203,797.06/x
  3. Step 3: Cross multiply
    690,065.71x = 1,035,210.92 × 203,797.06
  4. Step 4: Simplify right side
    690,065.71x = 210,972,941,975.90
  5. Step 5: Solve for x
    x = 210,972,941,975.90/690,065.71
  6. Step 6: Final answer
    x = 305,728.77

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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.