Home / 822,863.81-1,135,094.78-478,661.01

Finding the Fourth Proportional to 822,863.81, 1,135,094.78 and 478,661.01

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Solution

The fourth proportional to 822,863.81, 1,135,094.78 and 478,661.01 is: 660,286.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    822,863.81 : 1,135,094.78 = 478,661.01 : x
  2. Step 2: Convert to fraction form
    822,863.81/1,135,094.78 = 478,661.01/x
  3. Step 3: Cross multiply
    822,863.81x = 1,135,094.78 × 478,661.01
  4. Step 4: Simplify right side
    822,863.81x = 543,325,615,819.25
  5. Step 5: Solve for x
    x = 543,325,615,819.25/822,863.81
  6. Step 6: Final answer
    x = 660,286.20

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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.