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Finding the Fourth Proportional to 520,523.31, 718,275.31 and 302,734.00

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Solution

The fourth proportional to 520,523.31, 718,275.31 and 302,734.00 is: 417,745.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,523.31 : 718,275.31 = 302,734.00 : x
  2. Step 2: Convert to fraction form
    520,523.31/718,275.31 = 302,734.00/x
  3. Step 3: Cross multiply
    520,523.31x = 718,275.31 × 302,734.00
  4. Step 4: Simplify right side
    520,523.31x = 217,446,355,145.02
  5. Step 5: Solve for x
    x = 217,446,355,145.02/520,523.31
  6. Step 6: Final answer
    x = 417,745.66

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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.