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Finding the Fourth Proportional to 504,110.40, 756,079.20 and 188,404.80

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Solution

The fourth proportional to 504,110.40, 756,079.20 and 188,404.80 is: 282,574.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,110.40 : 756,079.20 = 188,404.80 : x
  2. Step 2: Convert to fraction form
    504,110.40/756,079.20 = 188,404.80/x
  3. Step 3: Cross multiply
    504,110.40x = 756,079.20 × 188,404.80
  4. Step 4: Simplify right side
    504,110.40x = 142,448,950,460.16
  5. Step 5: Solve for x
    x = 142,448,950,460.16/504,110.40
  6. Step 6: Final answer
    x = 282,574.91

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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.