Home / 872,319.99-1,308,478.60-273,327.12

Finding the Fourth Proportional to 872,319.99, 1,308,478.60 and 273,327.12

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Solution

The fourth proportional to 872,319.99, 1,308,478.60 and 273,327.12 is: 409,990.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,319.99 : 1,308,478.60 = 273,327.12 : x
  2. Step 2: Convert to fraction form
    872,319.99/1,308,478.60 = 273,327.12/x
  3. Step 3: Cross multiply
    872,319.99x = 1,308,478.60 × 273,327.12
  4. Step 4: Simplify right side
    872,319.99x = 357,642,687,319.63
  5. Step 5: Solve for x
    x = 357,642,687,319.63/872,319.99
  6. Step 6: Final answer
    x = 409,990.25

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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.