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Finding the Fourth Proportional to 573,997.79, 792,120.57 and 315,867.60

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Solution

The fourth proportional to 573,997.79, 792,120.57 and 315,867.60 is: 435,899.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,997.79 : 792,120.57 = 315,867.60 : x
  2. Step 2: Convert to fraction form
    573,997.79/792,120.57 = 315,867.60/x
  3. Step 3: Cross multiply
    573,997.79x = 792,120.57 × 315,867.60
  4. Step 4: Simplify right side
    573,997.79x = 250,205,222,172.03
  5. Step 5: Solve for x
    x = 250,205,222,172.03/573,997.79
  6. Step 6: Final answer
    x = 435,899.28

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.