Home / 1,500,889.32-2,071,227.78-821,867.40

Finding the Fourth Proportional to 1,500,889.32, 2,071,227.78 and 821,867.40

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Solution

The fourth proportional to 1,500,889.32, 2,071,227.78 and 821,867.40 is: 1,134,177.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,500,889.32 : 2,071,227.78 = 821,867.40 : x
  2. Step 2: Convert to fraction form
    1,500,889.32/2,071,227.78 = 821,867.40/x
  3. Step 3: Cross multiply
    1,500,889.32x = 2,071,227.78 × 821,867.40
  4. Step 4: Simplify right side
    1,500,889.32x = 1,702,274,590,356.37
  5. Step 5: Solve for x
    x = 1,702,274,590,356.37/1,500,889.32
  6. Step 6: Final answer
    x = 1,134,177.30

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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.