Home / 947,280.56-1,420,921.74-264,140.12

Finding the Fourth Proportional to 947,280.56, 1,420,921.74 and 264,140.12

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Solution

The fourth proportional to 947,280.56, 1,420,921.74 and 264,140.12 is: 396,210.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,280.56 : 1,420,921.74 = 264,140.12 : x
  2. Step 2: Convert to fraction form
    947,280.56/1,420,921.74 = 264,140.12/x
  3. Step 3: Cross multiply
    947,280.56x = 1,420,921.74 × 264,140.12
  4. Step 4: Simplify right side
    947,280.56x = 375,322,443,457.04
  5. Step 5: Solve for x
    x = 375,322,443,457.04/947,280.56
  6. Step 6: Final answer
    x = 396,210.44

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Double scale
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Similar ratio
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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.