Home / 411,831.18-617,571.81-141,988.86

Finding the Fourth Proportional to 411,831.18, 617,571.81 and 141,988.86

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Solution

The fourth proportional to 411,831.18, 617,571.81 and 141,988.86 is: 212,922.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,831.18 : 617,571.81 = 141,988.86 : x
  2. Step 2: Convert to fraction form
    411,831.18/617,571.81 = 141,988.86/x
  3. Step 3: Cross multiply
    411,831.18x = 617,571.81 × 141,988.86
  4. Step 4: Simplify right side
    411,831.18x = 87,688,317,270.04
  5. Step 5: Solve for x
    x = 87,688,317,270.04/411,831.18
  6. Step 6: Final answer
    x = 212,922.97

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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.