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Finding the Fourth Proportional to 629,430.60, 945,989.10 and 548,329.80

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Solution

The fourth proportional to 629,430.60, 945,989.10 and 548,329.80 is: 824,100.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,430.60 : 945,989.10 = 548,329.80 : x
  2. Step 2: Convert to fraction form
    629,430.60/945,989.10 = 548,329.80/x
  3. Step 3: Cross multiply
    629,430.60x = 945,989.10 × 548,329.80
  4. Step 4: Simplify right side
    629,430.60x = 518,714,014,005.18
  5. Step 5: Solve for x
    x = 518,714,014,005.18/629,430.60
  6. Step 6: Final answer
    x = 824,100.41

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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.