Home / 947,831.76-1,307,616.21-661,519.44

Finding the Fourth Proportional to 947,831.76, 1,307,616.21 and 661,519.44

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Solution

The fourth proportional to 947,831.76, 1,307,616.21 and 661,519.44 is: 912,623.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,831.76 : 1,307,616.21 = 661,519.44 : x
  2. Step 2: Convert to fraction form
    947,831.76/1,307,616.21 = 661,519.44/x
  3. Step 3: Cross multiply
    947,831.76x = 1,307,616.21 × 661,519.44
  4. Step 4: Simplify right side
    947,831.76x = 865,013,542,974.12
  5. Step 5: Solve for x
    x = 865,013,542,974.12/947,831.76
  6. Step 6: Final answer
    x = 912,623.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.