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Finding the Fourth Proportional to 648,536.73, 894,989.55 and 358,167.89

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Solution

The fourth proportional to 648,536.73, 894,989.55 and 358,167.89 is: 494,276.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,536.73 : 894,989.55 = 358,167.89 : x
  2. Step 2: Convert to fraction form
    648,536.73/894,989.55 = 358,167.89/x
  3. Step 3: Cross multiply
    648,536.73x = 894,989.55 × 358,167.89
  4. Step 4: Simplify right side
    648,536.73x = 320,556,522,276.15
  5. Step 5: Solve for x
    x = 320,556,522,276.15/648,536.73
  6. Step 6: Final answer
    x = 494,276.59

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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.