Home / 1,098,683.38-1,648,035.33-388,831.78

Finding the Fourth Proportional to 1,098,683.38, 1,648,035.33 and 388,831.78

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Solution

The fourth proportional to 1,098,683.38, 1,648,035.33 and 388,831.78 is: 583,251.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098,683.38 : 1,648,035.33 = 388,831.78 : x
  2. Step 2: Convert to fraction form
    1,098,683.38/1,648,035.33 = 388,831.78/x
  3. Step 3: Cross multiply
    1,098,683.38x = 1,648,035.33 × 388,831.78
  4. Step 4: Simplify right side
    1,098,683.38x = 640,808,500,682.45
  5. Step 5: Solve for x
    x = 640,808,500,682.45/1,098,683.38
  6. Step 6: Final answer
    x = 583,251.29

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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.