Home / 890,156.76-1,228,348.64-508,131.60

Finding the Fourth Proportional to 890,156.76, 1,228,348.64 and 508,131.60

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Solution

The fourth proportional to 890,156.76, 1,228,348.64 and 508,131.60 is: 701,182.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,156.76 : 1,228,348.64 = 508,131.60 : x
  2. Step 2: Convert to fraction form
    890,156.76/1,228,348.64 = 508,131.60/x
  3. Step 3: Cross multiply
    890,156.76x = 1,228,348.64 × 508,131.60
  4. Step 4: Simplify right side
    890,156.76x = 624,162,759,801.02
  5. Step 5: Solve for x
    x = 624,162,759,801.02/890,156.76
  6. Step 6: Final answer
    x = 701,182.97

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Half scale
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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.