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Finding the Fourth Proportional to 611,102.55, 843,308.82 and 339,154.50

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Solution

The fourth proportional to 611,102.55, 843,308.82 and 339,154.50 is: 468,026.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,102.55 : 843,308.82 = 339,154.50 : x
  2. Step 2: Convert to fraction form
    611,102.55/843,308.82 = 339,154.50/x
  3. Step 3: Cross multiply
    611,102.55x = 843,308.82 × 339,154.50
  4. Step 4: Simplify right side
    611,102.55x = 286,011,981,192.69
  5. Step 5: Solve for x
    x = 286,011,981,192.69/611,102.55
  6. Step 6: Final answer
    x = 468,026.16

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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.