Home / 668,831.20-1,003,246.80-314,537.20

Finding the Fourth Proportional to 668,831.20, 1,003,246.80 and 314,537.20

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Solution

The fourth proportional to 668,831.20, 1,003,246.80 and 314,537.20 is: 471,805.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,831.20 : 1,003,246.80 = 314,537.20 : x
  2. Step 2: Convert to fraction form
    668,831.20/1,003,246.80 = 314,537.20/x
  3. Step 3: Cross multiply
    668,831.20x = 1,003,246.80 × 314,537.20
  4. Step 4: Simplify right side
    668,831.20x = 315,558,439,380.96
  5. Step 5: Solve for x
    x = 315,558,439,380.96/668,831.20
  6. Step 6: Final answer
    x = 471,805.80

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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.