Home / 890,243.92-1,228,496.52-487,827.28

Finding the Fourth Proportional to 890,243.92, 1,228,496.52 and 487,827.28

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Solution

The fourth proportional to 890,243.92, 1,228,496.52 and 487,827.28 is: 673,179.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,243.92 : 1,228,496.52 = 487,827.28 : x
  2. Step 2: Convert to fraction form
    890,243.92/1,228,496.52 = 487,827.28/x
  3. Step 3: Cross multiply
    890,243.92x = 1,228,496.52 × 487,827.28
  4. Step 4: Simplify right side
    890,243.92x = 599,294,115,841.07
  5. Step 5: Solve for x
    x = 599,294,115,841.07/890,243.92
  6. Step 6: Final answer
    x = 673,179.68

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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.