Home / 1,008,958.22-1,391,575.04-646,416.05

Finding the Fourth Proportional to 1,008,958.22, 1,391,575.04 and 646,416.05

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Solution

The fourth proportional to 1,008,958.22, 1,391,575.04 and 646,416.05 is: 891,549.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,958.22 : 1,391,575.04 = 646,416.05 : x
  2. Step 2: Convert to fraction form
    1,008,958.22/1,391,575.04 = 646,416.05/x
  3. Step 3: Cross multiply
    1,008,958.22x = 1,391,575.04 × 646,416.05
  4. Step 4: Simplify right side
    1,008,958.22x = 899,536,432,869.50
  5. Step 5: Solve for x
    x = 899,536,432,869.50/1,008,958.22
  6. Step 6: Final answer
    x = 891,549.73

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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.