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Finding the Fourth Proportional to 628,648.40, 942,972.60 and 254,671.40

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Solution

The fourth proportional to 628,648.40, 942,972.60 and 254,671.40 is: 382,007.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,648.40 : 942,972.60 = 254,671.40 : x
  2. Step 2: Convert to fraction form
    628,648.40/942,972.60 = 254,671.40/x
  3. Step 3: Cross multiply
    628,648.40x = 942,972.60 × 254,671.40
  4. Step 4: Simplify right side
    628,648.40x = 240,148,152,203.64
  5. Step 5: Solve for x
    x = 240,148,152,203.64/628,648.40
  6. Step 6: Final answer
    x = 382,007.10

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Similar ratio
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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.