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Finding the Fourth Proportional to 676,532.34, 932,970.42 and 404,556.21

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Solution

The fourth proportional to 676,532.34, 932,970.42 and 404,556.21 is: 557,902.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,532.34 : 932,970.42 = 404,556.21 : x
  2. Step 2: Convert to fraction form
    676,532.34/932,970.42 = 404,556.21/x
  3. Step 3: Cross multiply
    676,532.34x = 932,970.42 × 404,556.21
  4. Step 4: Simplify right side
    676,532.34x = 377,438,977,157.31
  5. Step 5: Solve for x
    x = 377,438,977,157.31/676,532.34
  6. Step 6: Final answer
    x = 557,902.34

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1.5x scale

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.