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Finding the Fourth Proportional to 482,585.28, 665,690.99 and 300,981.93

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Solution

The fourth proportional to 482,585.28, 665,690.99 and 300,981.93 is: 415,182.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,585.28 : 665,690.99 = 300,981.93 : x
  2. Step 2: Convert to fraction form
    482,585.28/665,690.99 = 300,981.93/x
  3. Step 3: Cross multiply
    482,585.28x = 665,690.99 × 300,981.93
  4. Step 4: Simplify right side
    482,585.28x = 200,360,958,953.81
  5. Step 5: Solve for x
    x = 200,360,958,953.81/482,585.28
  6. Step 6: Final answer
    x = 415,182.49

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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.