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Finding the Fourth Proportional to 611,165.36, 843,392 and 339,232.48

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Solution

The fourth proportional to 611,165.36, 843,392 and 339,232.48 is: 468,131.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,165.36 : 843,392 = 339,232.48 : x
  2. Step 2: Convert to fraction form
    611,165.36/843,392 = 339,232.48/x
  3. Step 3: Cross multiply
    611,165.36x = 843,392 × 339,232.48
  4. Step 4: Simplify right side
    611,165.36x = 286,105,959,772.16
  5. Step 5: Solve for x
    x = 286,105,959,772.16/611,165.36
  6. Step 6: Final answer
    x = 468,131.83

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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.