Home / 450,971.78-622,316.99-247,012.16

Finding the Fourth Proportional to 450,971.78, 622,316.99 and 247,012.16

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Solution

The fourth proportional to 450,971.78, 622,316.99 and 247,012.16 is: 340,863.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,971.78 : 622,316.99 = 247,012.16 : x
  2. Step 2: Convert to fraction form
    450,971.78/622,316.99 = 247,012.16/x
  3. Step 3: Cross multiply
    450,971.78x = 622,316.99 × 247,012.16
  4. Step 4: Simplify right side
    450,971.78x = 153,719,861,410.54
  5. Step 5: Solve for x
    x = 153,719,861,410.54/450,971.78
  6. Step 6: Final answer
    x = 340,863.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.