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Finding the Fourth Proportional to 526,428.33, 726,560.42 and 297,050.64

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Solution

The fourth proportional to 526,428.33, 726,560.42 and 297,050.64 is: 409,980.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,428.33 : 726,560.42 = 297,050.64 : x
  2. Step 2: Convert to fraction form
    526,428.33/726,560.42 = 297,050.64/x
  3. Step 3: Cross multiply
    526,428.33x = 726,560.42 × 297,050.64
  4. Step 4: Simplify right side
    526,428.33x = 215,825,236,274.42
  5. Step 5: Solve for x
    x = 215,825,236,274.42/526,428.33
  6. Step 6: Final answer
    x = 409,980.28

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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.