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Finding the Fourth Proportional to 389,831.92, 584,952.82 and 276,709.76

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Solution

The fourth proportional to 389,831.92, 584,952.82 and 276,709.76 is: 415,210.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,831.92 : 584,952.82 = 276,709.76 : x
  2. Step 2: Convert to fraction form
    389,831.92/584,952.82 = 276,709.76/x
  3. Step 3: Cross multiply
    389,831.92x = 584,952.82 × 276,709.76
  4. Step 4: Simplify right side
    389,831.92x = 161,862,154,433.52
  5. Step 5: Solve for x
    x = 161,862,154,433.52/389,831.92
  6. Step 6: Final answer
    x = 415,210.11

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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.