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Finding the Fourth Proportional to 504,428.70, 756,643.05 and 188,868.90

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Solution

The fourth proportional to 504,428.70, 756,643.05 and 188,868.90 is: 283,303.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,428.70 : 756,643.05 = 188,868.90 : x
  2. Step 2: Convert to fraction form
    504,428.70/756,643.05 = 188,868.90/x
  3. Step 3: Cross multiply
    504,428.70x = 756,643.05 × 188,868.90
  4. Step 4: Simplify right side
    504,428.70x = 142,906,340,546.15
  5. Step 5: Solve for x
    x = 142,906,340,546.15/504,428.70
  6. Step 6: Final answer
    x = 283,303.35

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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.