Home / 876,649.56-1,312,981.44-685,921.32

Finding the Fourth Proportional to 876,649.56, 1,312,981.44 and 685,921.32

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Solution

The fourth proportional to 876,649.56, 1,312,981.44 and 685,921.32 is: 1,027,322.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,649.56 : 1,312,981.44 = 685,921.32 : x
  2. Step 2: Convert to fraction form
    876,649.56/1,312,981.44 = 685,921.32/x
  3. Step 3: Cross multiply
    876,649.56x = 1,312,981.44 × 685,921.32
  4. Step 4: Simplify right side
    876,649.56x = 900,601,962,460.30
  5. Step 5: Solve for x
    x = 900,601,962,460.30/876,649.56
  6. Step 6: Final answer
    x = 1,027,322.67

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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.