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Finding the Fourth Proportional to 531,803.20, 797,704.80 and 472,820.80

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Solution

The fourth proportional to 531,803.20, 797,704.80 and 472,820.80 is: 709,231.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,803.20 : 797,704.80 = 472,820.80 : x
  2. Step 2: Convert to fraction form
    531,803.20/797,704.80 = 472,820.80/x
  3. Step 3: Cross multiply
    531,803.20x = 797,704.80 × 472,820.80
  4. Step 4: Simplify right side
    531,803.20x = 377,171,421,699.84
  5. Step 5: Solve for x
    x = 377,171,421,699.84/531,803.20
  6. Step 6: Final answer
    x = 709,231.20

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Similar ratio
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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.