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Finding the Fourth Proportional to 526,513.45, 788,220.13 and 326,189.71

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Solution

The fourth proportional to 526,513.45, 788,220.13 and 326,189.71 is: 488,324.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,513.45 : 788,220.13 = 326,189.71 : x
  2. Step 2: Convert to fraction form
    526,513.45/788,220.13 = 326,189.71/x
  3. Step 3: Cross multiply
    526,513.45x = 788,220.13 × 326,189.71
  4. Step 4: Simplify right side
    526,513.45x = 257,109,293,989.91
  5. Step 5: Solve for x
    x = 257,109,293,989.91/526,513.45
  6. Step 6: Final answer
    x = 488,324.27

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Double scale
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Similar ratio
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1.5x scale

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.