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Finding the Fourth Proportional to 526,356.32, 726,453.48 and 345,592.64

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Solution

The fourth proportional to 526,356.32, 726,453.48 and 345,592.64 is: 476,971.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,356.32 : 726,453.48 = 345,592.64 : x
  2. Step 2: Convert to fraction form
    526,356.32/726,453.48 = 345,592.64/x
  3. Step 3: Cross multiply
    526,356.32x = 726,453.48 × 345,592.64
  4. Step 4: Simplify right side
    526,356.32x = 251,056,975,990.39
  5. Step 5: Solve for x
    x = 251,056,975,990.39/526,356.32
  6. Step 6: Final answer
    x = 476,971.52

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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.