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Finding the Fourth Proportional to 525,892.20, 788,838.30 and 437,245.80

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Solution

The fourth proportional to 525,892.20, 788,838.30 and 437,245.80 is: 655,868.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,892.20 : 788,838.30 = 437,245.80 : x
  2. Step 2: Convert to fraction form
    525,892.20/788,838.30 = 437,245.80/x
  3. Step 3: Cross multiply
    525,892.20x = 788,838.30 × 437,245.80
  4. Step 4: Simplify right side
    525,892.20x = 344,916,233,554.14
  5. Step 5: Solve for x
    x = 344,916,233,554.14/525,892.20
  6. Step 6: Final answer
    x = 655,868.70

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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.