Home / 792,416.84-1,188,612.30-319,090.28

Finding the Fourth Proportional to 792,416.84, 1,188,612.30 and 319,090.28

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Solution

The fourth proportional to 792,416.84, 1,188,612.30 and 319,090.28 is: 478,630.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    792,416.84 : 1,188,612.30 = 319,090.28 : x
  2. Step 2: Convert to fraction form
    792,416.84/1,188,612.30 = 319,090.28/x
  3. Step 3: Cross multiply
    792,416.84x = 1,188,612.30 × 319,090.28
  4. Step 4: Simplify right side
    792,416.84x = 379,274,631,618.44
  5. Step 5: Solve for x
    x = 379,274,631,618.44/792,416.84
  6. Step 6: Final answer
    x = 478,630.20

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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.