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Finding the Fourth Proportional to 547,545.67, 755,605.06 and 305,831.68

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Solution

The fourth proportional to 547,545.67, 755,605.06 and 305,831.68 is: 422,043.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,545.67 : 755,605.06 = 305,831.68 : x
  2. Step 2: Convert to fraction form
    547,545.67/755,605.06 = 305,831.68/x
  3. Step 3: Cross multiply
    547,545.67x = 755,605.06 × 305,831.68
  4. Step 4: Simplify right side
    547,545.67x = 231,087,964,916.30
  5. Step 5: Solve for x
    x = 231,087,964,916.30/547,545.67
  6. Step 6: Final answer
    x = 422,043.27

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1.5x scale

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.