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Finding the Fourth Proportional to 504,028.60, 756,042.90 and 188,420.20

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Solution

The fourth proportional to 504,028.60, 756,042.90 and 188,420.20 is: 282,630.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,028.60 : 756,042.90 = 188,420.20 : x
  2. Step 2: Convert to fraction form
    504,028.60/756,042.90 = 188,420.20/x
  3. Step 3: Cross multiply
    504,028.60x = 756,042.90 × 188,420.20
  4. Step 4: Simplify right side
    504,028.60x = 142,453,754,426.58
  5. Step 5: Solve for x
    x = 142,453,754,426.58/504,028.60
  6. Step 6: Final answer
    x = 282,630.30

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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.