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Finding the Fourth Proportional to 507,428.38, 700,251.10 and 303,479.27

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Solution

The fourth proportional to 507,428.38, 700,251.10 and 303,479.27 is: 418,801.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,428.38 : 700,251.10 = 303,479.27 : x
  2. Step 2: Convert to fraction form
    507,428.38/700,251.10 = 303,479.27/x
  3. Step 3: Cross multiply
    507,428.38x = 700,251.10 × 303,479.27
  4. Step 4: Simplify right side
    507,428.38x = 212,511,690,135.37
  5. Step 5: Solve for x
    x = 212,511,690,135.37/507,428.38
  6. Step 6: Final answer
    x = 418,801.35

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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.