Home / 647,831.76-970,834.08-305,910.32

Finding the Fourth Proportional to 647,831.76, 970,834.08 and 305,910.32

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Solution

The fourth proportional to 647,831.76, 970,834.08 and 305,910.32 is: 458,434.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,831.76 : 970,834.08 = 305,910.32 : x
  2. Step 2: Convert to fraction form
    647,831.76/970,834.08 = 305,910.32/x
  3. Step 3: Cross multiply
    647,831.76x = 970,834.08 × 305,910.32
  4. Step 4: Simplify right side
    647,831.76x = 296,988,164,079.71
  5. Step 5: Solve for x
    x = 296,988,164,079.71/647,831.76
  6. Step 6: Final answer
    x = 458,434.09

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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.