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Finding the Fourth Proportional to 611,164.40, 843,384.60 and 339,244.40

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Solution

The fourth proportional to 611,164.40, 843,384.60 and 339,244.40 is: 468,144.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,164.40 : 843,384.60 = 339,244.40 : x
  2. Step 2: Convert to fraction form
    611,164.40/843,384.60 = 339,244.40/x
  3. Step 3: Cross multiply
    611,164.40x = 843,384.60 × 339,244.40
  4. Step 4: Simplify right side
    611,164.40x = 286,113,502,596.24
  5. Step 5: Solve for x
    x = 286,113,502,596.24/611,164.40
  6. Step 6: Final answer
    x = 468,144.91

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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.