Home / 1,019,639.97-1,528,565.71-388,133.73

Finding the Fourth Proportional to 1,019,639.97, 1,528,565.71 and 388,133.73

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Solution

The fourth proportional to 1,019,639.97, 1,528,565.71 and 388,133.73 is: 581,860.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,019,639.97 : 1,528,565.71 = 388,133.73 : x
  2. Step 2: Convert to fraction form
    1,019,639.97/1,528,565.71 = 388,133.73/x
  3. Step 3: Cross multiply
    1,019,639.97x = 1,528,565.71 × 388,133.73
  4. Step 4: Simplify right side
    1,019,639.97x = 593,287,910,572.40
  5. Step 5: Solve for x
    x = 593,287,910,572.40/1,019,639.97
  6. Step 6: Final answer
    x = 581,860.19

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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.