Home / 1,276,187.89-1,914,318.96-477,317.02

Finding the Fourth Proportional to 1,276,187.89, 1,914,318.96 and 477,317.02

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Solution

The fourth proportional to 1,276,187.89, 1,914,318.96 and 477,317.02 is: 715,989.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,187.89 : 1,914,318.96 = 477,317.02 : x
  2. Step 2: Convert to fraction form
    1,276,187.89/1,914,318.96 = 477,317.02/x
  3. Step 3: Cross multiply
    1,276,187.89x = 1,914,318.96 × 477,317.02
  4. Step 4: Simplify right side
    1,276,187.89x = 913,737,021,316.70
  5. Step 5: Solve for x
    x = 913,737,021,316.70/1,276,187.89
  6. Step 6: Final answer
    x = 715,989.42

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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.