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Finding the Fourth Proportional to 526,325.43, 726,333.42 and 290,586.87

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Solution

The fourth proportional to 526,325.43, 726,333.42 and 290,586.87 is: 401,012.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,325.43 : 726,333.42 = 290,586.87 : x
  2. Step 2: Convert to fraction form
    526,325.43/726,333.42 = 290,586.87/x
  3. Step 3: Cross multiply
    526,325.43x = 726,333.42 × 290,586.87
  4. Step 4: Simplify right side
    526,325.43x = 211,062,955,094.20
  5. Step 5: Solve for x
    x = 211,062,955,094.20/526,325.43
  6. Step 6: Final answer
    x = 401,012.27

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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.