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Finding the Fourth Proportional to 510,848.40, 764,960.40 and 404,997.60

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Solution

The fourth proportional to 510,848.40, 764,960.40 and 404,997.60 is: 606,456.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,848.40 : 764,960.40 = 404,997.60 : x
  2. Step 2: Convert to fraction form
    510,848.40/764,960.40 = 404,997.60/x
  3. Step 3: Cross multiply
    510,848.40x = 764,960.40 × 404,997.60
  4. Step 4: Simplify right side
    510,848.40x = 309,807,126,095.04
  5. Step 5: Solve for x
    x = 309,807,126,095.04/510,848.40
  6. Step 6: Final answer
    x = 606,456.10

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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.