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Finding the Fourth Proportional to 526,355.32, 726,452.10 and 345,591.64

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Solution

The fourth proportional to 526,355.32, 726,452.10 and 345,591.64 is: 476,970.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,355.32 : 726,452.10 = 345,591.64 : x
  2. Step 2: Convert to fraction form
    526,355.32/726,452.10 = 345,591.64/x
  3. Step 3: Cross multiply
    526,355.32x = 726,452.10 × 345,591.64
  4. Step 4: Simplify right side
    526,355.32x = 251,055,772,620.44
  5. Step 5: Solve for x
    x = 251,055,772,620.44/526,355.32
  6. Step 6: Final answer
    x = 476,970.14

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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.