Home / 1,098,682.88-1,648,034.57-388,831.28

Finding the Fourth Proportional to 1,098,682.88, 1,648,034.57 and 388,831.28

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Solution

The fourth proportional to 1,098,682.88, 1,648,034.57 and 388,831.28 is: 583,250.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098,682.88 : 1,648,034.57 = 388,831.28 : x
  2. Step 2: Convert to fraction form
    1,098,682.88/1,648,034.57 = 388,831.28/x
  3. Step 3: Cross multiply
    1,098,682.88x = 1,648,034.57 × 388,831.28
  4. Step 4: Simplify right side
    1,098,682.88x = 640,807,384,069.26
  5. Step 5: Solve for x
    x = 640,807,384,069.26/1,098,682.88
  6. Step 6: Final answer
    x = 583,250.54

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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.