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Finding the Fourth Proportional to 626,383.52, 864,411.48 and 339,903.61

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Solution

The fourth proportional to 626,383.52, 864,411.48 and 339,903.61 is: 469,068.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,383.52 : 864,411.48 = 339,903.61 : x
  2. Step 2: Convert to fraction form
    626,383.52/864,411.48 = 339,903.61/x
  3. Step 3: Cross multiply
    626,383.52x = 864,411.48 × 339,903.61
  4. Step 4: Simplify right side
    626,383.52x = 293,816,580,416.41
  5. Step 5: Solve for x
    x = 293,816,580,416.41/626,383.52
  6. Step 6: Final answer
    x = 469,068.19

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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.