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Finding the Fourth Proportional to 651,710.25, 899,388.59 and 361,303.31

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Solution

The fourth proportional to 651,710.25, 899,388.59 and 361,303.31 is: 498,614.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,710.25 : 899,388.59 = 361,303.31 : x
  2. Step 2: Convert to fraction form
    651,710.25/899,388.59 = 361,303.31/x
  3. Step 3: Cross multiply
    651,710.25x = 899,388.59 × 361,303.31
  4. Step 4: Simplify right side
    651,710.25x = 324,952,068,239.77
  5. Step 5: Solve for x
    x = 324,952,068,239.77/651,710.25
  6. Step 6: Final answer
    x = 498,614.33

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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.