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Finding the Fourth Proportional to 611,529.32, 843,872.82 and 339,580.64

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Solution

The fourth proportional to 611,529.32, 843,872.82 and 339,580.64 is: 468,600.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,529.32 : 843,872.82 = 339,580.64 : x
  2. Step 2: Convert to fraction form
    611,529.32/843,872.82 = 339,580.64/x
  3. Step 3: Cross multiply
    611,529.32x = 843,872.82 × 339,580.64
  4. Step 4: Simplify right side
    611,529.32x = 286,562,872,294.21
  5. Step 5: Solve for x
    x = 286,562,872,294.21/611,529.32
  6. Step 6: Final answer
    x = 468,600.38

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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.