Home / 690,574.27-1,035,859.09-311,050.75

Finding the Fourth Proportional to 690,574.27, 1,035,859.09 and 311,050.75

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Solution

The fourth proportional to 690,574.27, 1,035,859.09 and 311,050.75 is: 466,575.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,574.27 : 1,035,859.09 = 311,050.75 : x
  2. Step 2: Convert to fraction form
    690,574.27/1,035,859.09 = 311,050.75/x
  3. Step 3: Cross multiply
    690,574.27x = 1,035,859.09 × 311,050.75
  4. Step 4: Simplify right side
    690,574.27x = 322,204,746,838.82
  5. Step 5: Solve for x
    x = 322,204,746,838.82/690,574.27
  6. Step 6: Final answer
    x = 466,575.08

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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.