Home / 1,225,885.32-1,691,954.73-767,213.10

Finding the Fourth Proportional to 1,225,885.32, 1,691,954.73 and 767,213.10

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Solution

The fourth proportional to 1,225,885.32, 1,691,954.73 and 767,213.10 is: 1,058,899.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,885.32 : 1,691,954.73 = 767,213.10 : x
  2. Step 2: Convert to fraction form
    1,225,885.32/1,691,954.73 = 767,213.10/x
  3. Step 3: Cross multiply
    1,225,885.32x = 1,691,954.73 × 767,213.10
  4. Step 4: Simplify right side
    1,225,885.32x = 1,298,089,833,462.96
  5. Step 5: Solve for x
    x = 1,298,089,833,462.96/1,225,885.32
  6. Step 6: Final answer
    x = 1,058,899.89

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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.