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Finding the Fourth Proportional to 626,535.86, 864,620.22 and 340,056

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Solution

The fourth proportional to 626,535.86, 864,620.22 and 340,056 is: 469,277.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,535.86 : 864,620.22 = 340,056 : x
  2. Step 2: Convert to fraction form
    626,535.86/864,620.22 = 340,056/x
  3. Step 3: Cross multiply
    626,535.86x = 864,620.22 × 340,056
  4. Step 4: Simplify right side
    626,535.86x = 294,019,293,532.32
  5. Step 5: Solve for x
    x = 294,019,293,532.32/626,535.86
  6. Step 6: Final answer
    x = 469,277.68

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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.