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Finding the Fourth Proportional to 526,512.94, 788,219.38 and 326,189.21

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Solution

The fourth proportional to 526,512.94, 788,219.38 and 326,189.21 is: 488,323.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,512.94 : 788,219.38 = 326,189.21 : x
  2. Step 2: Convert to fraction form
    526,512.94/788,219.38 = 326,189.21/x
  3. Step 3: Cross multiply
    526,512.94x = 788,219.38 × 326,189.21
  4. Step 4: Simplify right side
    526,512.94x = 257,108,656,851.86
  5. Step 5: Solve for x
    x = 257,108,656,851.86/526,512.94
  6. Step 6: Final answer
    x = 488,323.53

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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.