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Finding the Fourth Proportional to 520,674.87, 718,521.81 and 294,320.37

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Solution

The fourth proportional to 520,674.87, 718,521.81 and 294,320.37 is: 406,156.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,674.87 : 718,521.81 = 294,320.37 : x
  2. Step 2: Convert to fraction form
    520,674.87/718,521.81 = 294,320.37/x
  3. Step 3: Cross multiply
    520,674.87x = 718,521.81 × 294,320.37
  4. Step 4: Simplify right side
    520,674.87x = 211,475,604,972.27
  5. Step 5: Solve for x
    x = 211,475,604,972.27/520,674.87
  6. Step 6: Final answer
    x = 406,156.73

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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.