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Finding the Fourth Proportional to 626,998.88, 865,263.54 and 340,521.02

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Solution

The fourth proportional to 626,998.88, 865,263.54 and 340,521.02 is: 469,921.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,998.88 : 865,263.54 = 340,521.02 : x
  2. Step 2: Convert to fraction form
    626,998.88/865,263.54 = 340,521.02/x
  3. Step 3: Cross multiply
    626,998.88x = 865,263.54 × 340,521.02
  4. Step 4: Simplify right side
    626,998.88x = 294,640,417,180.69
  5. Step 5: Solve for x
    x = 294,640,417,180.69/626,998.88
  6. Step 6: Final answer
    x = 469,921.76

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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.