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Finding the Fourth Proportional to 500,501.62, 690,709.44 and 274,147.12

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Solution

The fourth proportional to 500,501.62, 690,709.44 and 274,147.12 is: 378,332.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,501.62 : 690,709.44 = 274,147.12 : x
  2. Step 2: Convert to fraction form
    500,501.62/690,709.44 = 274,147.12/x
  3. Step 3: Cross multiply
    500,501.62x = 690,709.44 × 274,147.12
  4. Step 4: Simplify right side
    500,501.62x = 189,356,003,732.81
  5. Step 5: Solve for x
    x = 189,356,003,732.81/500,501.62
  6. Step 6: Final answer
    x = 378,332.45

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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.