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Finding the Fourth Proportional to 413,636.70, 619,142.85 and 413,636.70

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Solution

The fourth proportional to 413,636.70, 619,142.85 and 413,636.70 is: 619,142.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,636.70 : 619,142.85 = 413,636.70 : x
  2. Step 2: Convert to fraction form
    413,636.70/619,142.85 = 413,636.70/x
  3. Step 3: Cross multiply
    413,636.70x = 619,142.85 × 413,636.70
  4. Step 4: Simplify right side
    413,636.70x = 256,100,205,302.60
  5. Step 5: Solve for x
    x = 256,100,205,302.60/413,636.70
  6. Step 6: Final answer
    x = 619,142.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.