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Finding the Fourth Proportional to 525,717.60, 788,770.80 and 210,400.80

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Solution

The fourth proportional to 525,717.60, 788,770.80 and 210,400.80 is: 315,679.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,717.60 : 788,770.80 = 210,400.80 : x
  2. Step 2: Convert to fraction form
    525,717.60/788,770.80 = 210,400.80/x
  3. Step 3: Cross multiply
    525,717.60x = 788,770.80 × 210,400.80
  4. Step 4: Simplify right side
    525,717.60x = 165,958,007,336.64
  5. Step 5: Solve for x
    x = 165,958,007,336.64/525,717.60
  6. Step 6: Final answer
    x = 315,679.00

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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.