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Finding the Fourth Proportional to 651,899.26, 978,129.80 and 352,590.58

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Solution

The fourth proportional to 651,899.26, 978,129.80 and 352,590.58 is: 529,037.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,899.26 : 978,129.80 = 352,590.58 : x
  2. Step 2: Convert to fraction form
    651,899.26/978,129.80 = 352,590.58/x
  3. Step 3: Cross multiply
    651,899.26x = 978,129.80 × 352,590.58
  4. Step 4: Simplify right side
    651,899.26x = 344,879,353,497.28
  5. Step 5: Solve for x
    x = 344,879,353,497.28/651,899.26
  6. Step 6: Final answer
    x = 529,037.80

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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.