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Finding the Fourth Proportional to 530,861.76, 796,069.08 and 215,097.84

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Solution

The fourth proportional to 530,861.76, 796,069.08 and 215,097.84 is: 322,556.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,861.76 : 796,069.08 = 215,097.84 : x
  2. Step 2: Convert to fraction form
    530,861.76/796,069.08 = 215,097.84/x
  3. Step 3: Cross multiply
    530,861.76x = 796,069.08 × 215,097.84
  4. Step 4: Simplify right side
    530,861.76x = 171,232,739,598.79
  5. Step 5: Solve for x
    x = 171,232,739,598.79/530,861.76
  6. Step 6: Final answer
    x = 322,556.18

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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.