Home / 1,098,675.50-1,648,023.51-388,823.90

Finding the Fourth Proportional to 1,098,675.50, 1,648,023.51 and 388,823.90

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Solution

The fourth proportional to 1,098,675.50, 1,648,023.51 and 388,823.90 is: 583,239.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098,675.50 : 1,648,023.51 = 388,823.90 : x
  2. Step 2: Convert to fraction form
    1,098,675.50/1,648,023.51 = 388,823.90/x
  3. Step 3: Cross multiply
    1,098,675.50x = 1,648,023.51 × 388,823.90
  4. Step 4: Simplify right side
    1,098,675.50x = 640,790,928,449.89
  5. Step 5: Solve for x
    x = 640,790,928,449.89/1,098,675.50
  6. Step 6: Final answer
    x = 583,239.48

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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.