Home / 744,253.80-1,116,639.90-323,831.40

Finding the Fourth Proportional to 744,253.80, 1,116,639.90 and 323,831.40

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Solution

The fourth proportional to 744,253.80, 1,116,639.90 and 323,831.40 is: 485,859.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,253.80 : 1,116,639.90 = 323,831.40 : x
  2. Step 2: Convert to fraction form
    744,253.80/1,116,639.90 = 323,831.40/x
  3. Step 3: Cross multiply
    744,253.80x = 1,116,639.90 × 323,831.40
  4. Step 4: Simplify right side
    744,253.80x = 361,603,062,112.86
  5. Step 5: Solve for x
    x = 361,603,062,112.86/744,253.80
  6. Step 6: Final answer
    x = 485,859.88

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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.