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Finding the Fourth Proportional to 611,039.82, 916,441.04 and 307,353

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Solution

The fourth proportional to 611,039.82, 916,441.04 and 307,353 is: 460,969.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,039.82 : 916,441.04 = 307,353 : x
  2. Step 2: Convert to fraction form
    611,039.82/916,441.04 = 307,353/x
  3. Step 3: Cross multiply
    611,039.82x = 916,441.04 × 307,353
  4. Step 4: Simplify right side
    611,039.82x = 281,670,902,967.12
  5. Step 5: Solve for x
    x = 281,670,902,967.12/611,039.82
  6. Step 6: Final answer
    x = 460,969.80

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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.