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Finding the Fourth Proportional to 611,001.96, 843,147 and 339,050.28

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Solution

The fourth proportional to 611,001.96, 843,147 and 339,050.28 is: 467,869.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,001.96 : 843,147 = 339,050.28 : x
  2. Step 2: Convert to fraction form
    611,001.96/843,147 = 339,050.28/x
  3. Step 3: Cross multiply
    611,001.96x = 843,147 × 339,050.28
  4. Step 4: Simplify right side
    611,001.96x = 285,869,226,431.16
  5. Step 5: Solve for x
    x = 285,869,226,431.16/611,001.96
  6. Step 6: Final answer
    x = 467,869.57

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1.5x scale

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.