Home / 658,284.84-987,427.17-231,720.21

Finding the Fourth Proportional to 658,284.84, 987,427.17 and 231,720.21

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Solution

The fourth proportional to 658,284.84, 987,427.17 and 231,720.21 is: 347,580.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,284.84 : 987,427.17 = 231,720.21 : x
  2. Step 2: Convert to fraction form
    658,284.84/987,427.17 = 231,720.21/x
  3. Step 3: Cross multiply
    658,284.84x = 987,427.17 × 231,720.21
  4. Step 4: Simplify right side
    658,284.84x = 228,806,831,192.11
  5. Step 5: Solve for x
    x = 228,806,831,192.11/658,284.84
  6. Step 6: Final answer
    x = 347,580.28

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Half scale
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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.