Home / 1,272,318.60-1,908,476.70-325,687.80

Finding the Fourth Proportional to 1,272,318.60, 1,908,476.70 and 325,687.80

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Solution

The fourth proportional to 1,272,318.60, 1,908,476.70 and 325,687.80 is: 488,531.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,318.60 : 1,908,476.70 = 325,687.80 : x
  2. Step 2: Convert to fraction form
    1,272,318.60/1,908,476.70 = 325,687.80/x
  3. Step 3: Cross multiply
    1,272,318.60x = 1,908,476.70 × 325,687.80
  4. Step 4: Simplify right side
    1,272,318.60x = 621,567,577,774.26
  5. Step 5: Solve for x
    x = 621,567,577,774.26/1,272,318.60
  6. Step 6: Final answer
    x = 488,531.39

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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.