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Finding the Fourth Proportional to 626,555.93, 864,648.17 and 340,076.13

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Solution

The fourth proportional to 626,555.93, 864,648.17 and 340,076.13 is: 469,305.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,555.93 : 864,648.17 = 340,076.13 : x
  2. Step 2: Convert to fraction form
    626,555.93/864,648.17 = 340,076.13/x
  3. Step 3: Cross multiply
    626,555.93x = 864,648.17 × 340,076.13
  4. Step 4: Simplify right side
    626,555.93x = 294,046,201,764.80
  5. Step 5: Solve for x
    x = 294,046,201,764.80/626,555.93
  6. Step 6: Final answer
    x = 469,305.60

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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.