Home / 890,176.50-1,228,443.57-487,759.86

Finding the Fourth Proportional to 890,176.50, 1,228,443.57 and 487,759.86

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Solution

The fourth proportional to 890,176.50, 1,228,443.57 and 487,759.86 is: 673,108.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,176.50 : 1,228,443.57 = 487,759.86 : x
  2. Step 2: Convert to fraction form
    890,176.50/1,228,443.57 = 487,759.86/x
  3. Step 3: Cross multiply
    890,176.50x = 1,228,443.57 × 487,759.86
  4. Step 4: Simplify right side
    890,176.50x = 599,185,463,721.10
  5. Step 5: Solve for x
    x = 599,185,463,721.10/890,176.50
  6. Step 6: Final answer
    x = 673,108.61

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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.