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Finding the Fourth Proportional to 525,845.40, 788,768.10 and 504,850.20

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Solution

The fourth proportional to 525,845.40, 788,768.10 and 504,850.20 is: 757,275.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,845.40 : 788,768.10 = 504,850.20 : x
  2. Step 2: Convert to fraction form
    525,845.40/788,768.10 = 504,850.20/x
  3. Step 3: Cross multiply
    525,845.40x = 788,768.10 × 504,850.20
  4. Step 4: Simplify right side
    525,845.40x = 398,209,733,038.62
  5. Step 5: Solve for x
    x = 398,209,733,038.62/525,845.40
  6. Step 6: Final answer
    x = 757,275.30

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Double scale
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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.