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Finding the Fourth Proportional to 554,367.96, 765,024.04 and 312,652.60

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Solution

The fourth proportional to 554,367.96, 765,024.04 and 312,652.60 is: 431,458.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,367.96 : 765,024.04 = 312,652.60 : x
  2. Step 2: Convert to fraction form
    554,367.96/765,024.04 = 312,652.60/x
  3. Step 3: Cross multiply
    554,367.96x = 765,024.04 × 312,652.60
  4. Step 4: Simplify right side
    554,367.96x = 239,186,755,168.50
  5. Step 5: Solve for x
    x = 239,186,755,168.50/554,367.96
  6. Step 6: Final answer
    x = 431,458.48

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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.