Home / 1,218,223.20-1,823,835.60-745,831.20

Finding the Fourth Proportional to 1,218,223.20, 1,823,835.60 and 745,831.20

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Solution

The fourth proportional to 1,218,223.20, 1,823,835.60 and 745,831.20 is: 1,116,604.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,223.20 : 1,823,835.60 = 745,831.20 : x
  2. Step 2: Convert to fraction form
    1,218,223.20/1,823,835.60 = 745,831.20/x
  3. Step 3: Cross multiply
    1,218,223.20x = 1,823,835.60 × 745,831.20
  4. Step 4: Simplify right side
    1,218,223.20x = 1,360,273,494,150.72
  5. Step 5: Solve for x
    x = 1,360,273,494,150.72/1,218,223.20
  6. Step 6: Final answer
    x = 1,116,604.49

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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.