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Finding the Fourth Proportional to 708,514.36, 1,062,978.59 and 228,730.91

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Solution

The fourth proportional to 708,514.36, 1,062,978.59 and 228,730.91 is: 343,163.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,514.36 : 1,062,978.59 = 228,730.91 : x
  2. Step 2: Convert to fraction form
    708,514.36/1,062,978.59 = 228,730.91/x
  3. Step 3: Cross multiply
    708,514.36x = 1,062,978.59 × 228,730.91
  4. Step 4: Simplify right side
    708,514.36x = 243,136,055,458.15
  5. Step 5: Solve for x
    x = 243,136,055,458.15/708,514.36
  6. Step 6: Final answer
    x = 343,163.20

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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.