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Finding the Fourth Proportional to 627,794.40, 941,749.20 and 207,071.20

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Solution

The fourth proportional to 627,794.40, 941,749.20 and 207,071.20 is: 310,625.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,794.40 : 941,749.20 = 207,071.20 : x
  2. Step 2: Convert to fraction form
    627,794.40/941,749.20 = 207,071.20/x
  3. Step 3: Cross multiply
    627,794.40x = 941,749.20 × 207,071.20
  4. Step 4: Simplify right side
    627,794.40x = 195,009,136,943.04
  5. Step 5: Solve for x
    x = 195,009,136,943.04/627,794.40
  6. Step 6: Final answer
    x = 310,625.80

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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.