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Finding the Fourth Proportional to 475,779.75, 656,515.71 and 260,863.26

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Solution

The fourth proportional to 475,779.75, 656,515.71 and 260,863.26 is: 359,958.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,779.75 : 656,515.71 = 260,863.26 : x
  2. Step 2: Convert to fraction form
    475,779.75/656,515.71 = 260,863.26/x
  3. Step 3: Cross multiply
    475,779.75x = 656,515.71 × 260,863.26
  4. Step 4: Simplify right side
    475,779.75x = 171,260,828,351.82
  5. Step 5: Solve for x
    x = 171,260,828,351.82/475,779.75
  6. Step 6: Final answer
    x = 359,958.21

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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.