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Finding the Fourth Proportional to 513,075.48, 769,817.34 and 197,447.64

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Solution

The fourth proportional to 513,075.48, 769,817.34 and 197,447.64 is: 296,250.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,075.48 : 769,817.34 = 197,447.64 : x
  2. Step 2: Convert to fraction form
    513,075.48/769,817.34 = 197,447.64/x
  3. Step 3: Cross multiply
    513,075.48x = 769,817.34 × 197,447.64
  4. Step 4: Simplify right side
    513,075.48x = 151,998,617,014.08
  5. Step 5: Solve for x
    x = 151,998,617,014.08/513,075.48
  6. Step 6: Final answer
    x = 296,250.01

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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.