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Finding the Fourth Proportional to 520,252.51, 718,039.83 and 302,528.56

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Solution

The fourth proportional to 520,252.51, 718,039.83 and 302,528.56 is: 417,542.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,252.51 : 718,039.83 = 302,528.56 : x
  2. Step 2: Convert to fraction form
    520,252.51/718,039.83 = 302,528.56/x
  3. Step 3: Cross multiply
    520,252.51x = 718,039.83 × 302,528.56
  4. Step 4: Simplify right side
    520,252.51x = 217,227,555,792.55
  5. Step 5: Solve for x
    x = 217,227,555,792.55/520,252.51
  6. Step 6: Final answer
    x = 417,542.54

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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.