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Finding the Fourth Proportional to 620,876.98, 930,536.79 and 265,473.82

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Solution

The fourth proportional to 620,876.98, 930,536.79 and 265,473.82 is: 397,877.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,876.98 : 930,536.79 = 265,473.82 : x
  2. Step 2: Convert to fraction form
    620,876.98/930,536.79 = 265,473.82/x
  3. Step 3: Cross multiply
    620,876.98x = 930,536.79 × 265,473.82
  4. Step 4: Simplify right side
    620,876.98x = 247,033,156,291.84
  5. Step 5: Solve for x
    x = 247,033,156,291.84/620,876.98
  6. Step 6: Final answer
    x = 397,877.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.