Home / 879,007.48-1,325,099.44-820,417.20

Finding the Fourth Proportional to 879,007.48, 1,325,099.44 and 820,417.20

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Solution

The fourth proportional to 879,007.48, 1,325,099.44 and 820,417.20 is: 1,236,774.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,007.48 : 1,325,099.44 = 820,417.20 : x
  2. Step 2: Convert to fraction form
    879,007.48/1,325,099.44 = 820,417.20/x
  3. Step 3: Cross multiply
    879,007.48x = 1,325,099.44 × 820,417.20
  4. Step 4: Simplify right side
    879,007.48x = 1,087,134,372,286.37
  5. Step 5: Solve for x
    x = 1,087,134,372,286.37/879,007.48
  6. Step 6: Final answer
    x = 1,236,774.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.