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Finding the Fourth Proportional to 855,240.60, 1,180,151.88 and 511,008

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Solution

The fourth proportional to 855,240.60, 1,180,151.88 and 511,008 is: 705,143.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,240.60 : 1,180,151.88 = 511,008 : x
  2. Step 2: Convert to fraction form
    855,240.60/1,180,151.88 = 511,008/x
  3. Step 3: Cross multiply
    855,240.60x = 1,180,151.88 × 511,008
  4. Step 4: Simplify right side
    855,240.60x = 603,067,051,895.04
  5. Step 5: Solve for x
    x = 603,067,051,895.04/855,240.60
  6. Step 6: Final answer
    x = 705,143.15

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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.