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Finding the Fourth Proportional to 437,389.39, 603,709.95 and 284,808.43

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Solution

The fourth proportional to 437,389.39, 603,709.95 and 284,808.43 is: 393,108.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,389.39 : 603,709.95 = 284,808.43 : x
  2. Step 2: Convert to fraction form
    437,389.39/603,709.95 = 284,808.43/x
  3. Step 3: Cross multiply
    437,389.39x = 603,709.95 × 284,808.43
  4. Step 4: Simplify right side
    437,389.39x = 171,941,683,034.88
  5. Step 5: Solve for x
    x = 171,941,683,034.88/437,389.39
  6. Step 6: Final answer
    x = 393,108.95

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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.