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Finding the Fourth Proportional to 761.09, 1,050.26 and 466.29

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Solution

The fourth proportional to 761.09, 1,050.26 and 466.29 is: 643.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    761.09 : 1,050.26 = 466.29 : x
  2. Step 2: Convert to fraction form
    761.09/1,050.26 = 466.29/x
  3. Step 3: Cross multiply
    761.09x = 1,050.26 × 466.29
  4. Step 4: Simplify right side
    761.09x = 489,723.40
  5. Step 5: Solve for x
    x = 489,723.40/761.09
  6. Step 6: Final answer
    x = 643.45

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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.