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Finding the Fourth Proportional to 507,399.26, 699,727.82 and 303,417.16

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Solution

The fourth proportional to 507,399.26, 699,727.82 and 303,417.16 is: 418,426.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,399.26 : 699,727.82 = 303,417.16 : x
  2. Step 2: Convert to fraction form
    507,399.26/699,727.82 = 303,417.16/x
  3. Step 3: Cross multiply
    507,399.26x = 699,727.82 × 303,417.16
  4. Step 4: Simplify right side
    507,399.26x = 212,309,424,650.99
  5. Step 5: Solve for x
    x = 212,309,424,650.99/507,399.26
  6. Step 6: Final answer
    x = 418,426.76

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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.