Home / 890,177.88-1,228,443.82-482,289.86

Finding the Fourth Proportional to 890,177.88, 1,228,443.82 and 482,289.86

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Solution

The fourth proportional to 890,177.88, 1,228,443.82 and 482,289.86 is: 665,559.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,177.88 : 1,228,443.82 = 482,289.86 : x
  2. Step 2: Convert to fraction form
    890,177.88/1,228,443.82 = 482,289.86/x
  3. Step 3: Cross multiply
    890,177.88x = 1,228,443.82 × 482,289.86
  4. Step 4: Simplify right side
    890,177.88x = 592,465,999,831.05
  5. Step 5: Solve for x
    x = 592,465,999,831.05/890,177.88
  6. Step 6: Final answer
    x = 665,559.11

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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.