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Finding the Fourth Proportional to 908,360.24, 1,253,571 and 505,978.16

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Solution

The fourth proportional to 908,360.24, 1,253,571 and 505,978.16 is: 698,268.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,360.24 : 1,253,571 = 505,978.16 : x
  2. Step 2: Convert to fraction form
    908,360.24/1,253,571 = 505,978.16/x
  3. Step 3: Cross multiply
    908,360.24x = 1,253,571 × 505,978.16
  4. Step 4: Simplify right side
    908,360.24x = 634,279,548,009.36
  5. Step 5: Solve for x
    x = 634,279,548,009.36/908,360.24
  6. Step 6: Final answer
    x = 698,268.73

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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.