Home / 890,649.54-1,335,975.70-216,726.86

Finding the Fourth Proportional to 890,649.54, 1,335,975.70 and 216,726.86

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Solution

The fourth proportional to 890,649.54, 1,335,975.70 and 216,726.86 is: 325,090.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,649.54 : 1,335,975.70 = 216,726.86 : x
  2. Step 2: Convert to fraction form
    890,649.54/1,335,975.70 = 216,726.86/x
  3. Step 3: Cross multiply
    890,649.54x = 1,335,975.70 × 216,726.86
  4. Step 4: Simplify right side
    890,649.54x = 289,541,818,497.30
  5. Step 5: Solve for x
    x = 289,541,818,497.30/890,649.54
  6. Step 6: Final answer
    x = 325,090.63

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.