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Finding the Fourth Proportional to 636,183.48, 877,953.42 and 349,715.64

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Solution

The fourth proportional to 636,183.48, 877,953.42 and 349,715.64 is: 482,618.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,183.48 : 877,953.42 = 349,715.64 : x
  2. Step 2: Convert to fraction form
    636,183.48/877,953.42 = 349,715.64/x
  3. Step 3: Cross multiply
    636,183.48x = 877,953.42 × 349,715.64
  4. Step 4: Simplify right side
    636,183.48x = 307,034,042,165.49
  5. Step 5: Solve for x
    x = 307,034,042,165.49/636,183.48
  6. Step 6: Final answer
    x = 482,618.70

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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.