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Finding the Fourth Proportional to 648,445.62, 894,851.52 and 376,580.34

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Solution

The fourth proportional to 648,445.62, 894,851.52 and 376,580.34 is: 519,678.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,445.62 : 894,851.52 = 376,580.34 : x
  2. Step 2: Convert to fraction form
    648,445.62/894,851.52 = 376,580.34/x
  3. Step 3: Cross multiply
    648,445.62x = 894,851.52 × 376,580.34
  4. Step 4: Simplify right side
    648,445.62x = 336,983,489,651.12
  5. Step 5: Solve for x
    x = 336,983,489,651.12/648,445.62
  6. Step 6: Final answer
    x = 519,678.87

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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.