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Finding the Fourth Proportional to 611,451.60, 843,819.03 and 339,530.96

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Solution

The fourth proportional to 611,451.60, 843,819.03 and 339,530.96 is: 468,561.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,451.60 : 843,819.03 = 339,530.96 : x
  2. Step 2: Convert to fraction form
    611,451.60/843,819.03 = 339,530.96/x
  3. Step 3: Cross multiply
    611,451.60x = 843,819.03 × 339,530.96
  4. Step 4: Simplify right side
    611,451.60x = 286,502,685,322.17
  5. Step 5: Solve for x
    x = 286,502,685,322.17/611,451.60
  6. Step 6: Final answer
    x = 468,561.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.