Home / 890,210.92-1,228,450.98-487,794.28

Finding the Fourth Proportional to 890,210.92, 1,228,450.98 and 487,794.28

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Solution

The fourth proportional to 890,210.92, 1,228,450.98 and 487,794.28 is: 673,134.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,210.92 : 1,228,450.98 = 487,794.28 : x
  2. Step 2: Convert to fraction form
    890,210.92/1,228,450.98 = 487,794.28/x
  3. Step 3: Cross multiply
    890,210.92x = 1,228,450.98 × 487,794.28
  4. Step 4: Simplify right side
    890,210.92x = 599,231,361,304.39
  5. Step 5: Solve for x
    x = 599,231,361,304.39/890,210.92
  6. Step 6: Final answer
    x = 673,134.14

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Double scale
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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.