Home / 872,147.09-1,308,220.65-273,155.13

Finding the Fourth Proportional to 872,147.09, 1,308,220.65 and 273,155.13

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Solution

The fourth proportional to 872,147.09, 1,308,220.65 and 273,155.13 is: 409,732.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,147.09 : 1,308,220.65 = 273,155.13 : x
  2. Step 2: Convert to fraction form
    872,147.09/1,308,220.65 = 273,155.13/x
  3. Step 3: Cross multiply
    872,147.09x = 1,308,220.65 × 273,155.13
  4. Step 4: Simplify right side
    872,147.09x = 357,347,181,719.44
  5. Step 5: Solve for x
    x = 357,347,181,719.44/872,147.09
  6. Step 6: Final answer
    x = 409,732.70

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Double scale
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1.5x scale

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.