Home / 831,457.72-1,147,412.52-449,484.52

Finding the Fourth Proportional to 831,457.72, 1,147,412.52 and 449,484.52

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Solution

The fourth proportional to 831,457.72, 1,147,412.52 and 449,484.52 is: 620,289.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,457.72 : 1,147,412.52 = 449,484.52 : x
  2. Step 2: Convert to fraction form
    831,457.72/1,147,412.52 = 449,484.52/x
  3. Step 3: Cross multiply
    831,457.72x = 1,147,412.52 × 449,484.52
  4. Step 4: Simplify right side
    831,457.72x = 515,744,165,794.19
  5. Step 5: Solve for x
    x = 515,744,165,794.19/831,457.72
  6. Step 6: Final answer
    x = 620,289.11

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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.