Home / 872,420.72-1,308,631.37-273,428.34

Finding the Fourth Proportional to 872,420.72, 1,308,631.37 and 273,428.34

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Solution

The fourth proportional to 872,420.72, 1,308,631.37 and 273,428.34 is: 410,142.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,420.72 : 1,308,631.37 = 273,428.34 : x
  2. Step 2: Convert to fraction form
    872,420.72/1,308,631.37 = 273,428.34/x
  3. Step 3: Cross multiply
    872,420.72x = 1,308,631.37 × 273,428.34
  4. Step 4: Simplify right side
    872,420.72x = 357,816,901,803.88
  5. Step 5: Solve for x
    x = 357,816,901,803.88/872,420.72
  6. Step 6: Final answer
    x = 410,142.60

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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.