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Finding the Fourth Proportional to 635,559.12, 876,858.13 and 359,879.40

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Solution

The fourth proportional to 635,559.12, 876,858.13 and 359,879.40 is: 496,512.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,559.12 : 876,858.13 = 359,879.40 : x
  2. Step 2: Convert to fraction form
    635,559.12/876,858.13 = 359,879.40/x
  3. Step 3: Cross multiply
    635,559.12x = 876,858.13 × 359,879.40
  4. Step 4: Simplify right side
    635,559.12x = 315,563,172,425.53
  5. Step 5: Solve for x
    x = 315,563,172,425.53/635,559.12
  6. Step 6: Final answer
    x = 496,512.70

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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.