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Finding the Fourth Proportional to 520,692.16, 718,707.95 and 302,952.06

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Solution

The fourth proportional to 520,692.16, 718,707.95 and 302,952.06 is: 418,162.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,692.16 : 718,707.95 = 302,952.06 : x
  2. Step 2: Convert to fraction form
    520,692.16/718,707.95 = 302,952.06/x
  3. Step 3: Cross multiply
    520,692.16x = 718,707.95 × 302,952.06
  4. Step 4: Simplify right side
    520,692.16x = 217,734,053,990.88
  5. Step 5: Solve for x
    x = 217,734,053,990.88/520,692.16
  6. Step 6: Final answer
    x = 418,162.73

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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.