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Finding the Fourth Proportional to 611,261.91, 916,888.77 and 332,550.63

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Solution

The fourth proportional to 611,261.91, 916,888.77 and 332,550.63 is: 498,823.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,261.91 : 916,888.77 = 332,550.63 : x
  2. Step 2: Convert to fraction form
    611,261.91/916,888.77 = 332,550.63/x
  3. Step 3: Cross multiply
    611,261.91x = 916,888.77 × 332,550.63
  4. Step 4: Simplify right side
    611,261.91x = 304,911,938,103.43
  5. Step 5: Solve for x
    x = 304,911,938,103.43/611,261.91
  6. Step 6: Final answer
    x = 498,823.72

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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.