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Finding the Fourth Proportional to 648,070.66, 894,380.70 and 361,597.15

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Solution

The fourth proportional to 648,070.66, 894,380.70 and 361,597.15 is: 499,028.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,070.66 : 894,380.70 = 361,597.15 : x
  2. Step 2: Convert to fraction form
    648,070.66/894,380.70 = 361,597.15/x
  3. Step 3: Cross multiply
    648,070.66x = 894,380.70 × 361,597.15
  4. Step 4: Simplify right side
    648,070.66x = 323,405,512,135.01
  5. Step 5: Solve for x
    x = 323,405,512,135.01/648,070.66
  6. Step 6: Final answer
    x = 499,028.16

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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.