Home / 831,430.22-1,147,373.25-449,457.71

Finding the Fourth Proportional to 831,430.22, 1,147,373.25 and 449,457.71

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Solution

The fourth proportional to 831,430.22, 1,147,373.25 and 449,457.71 is: 620,251.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,430.22 : 1,147,373.25 = 449,457.71 : x
  2. Step 2: Convert to fraction form
    831,430.22/1,147,373.25 = 449,457.71/x
  3. Step 3: Cross multiply
    831,430.22x = 1,147,373.25 × 449,457.71
  4. Step 4: Simplify right side
    831,430.22x = 515,695,753,460.26
  5. Step 5: Solve for x
    x = 515,695,753,460.26/831,430.22
  6. Step 6: Final answer
    x = 620,251.39

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Double scale
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1.5x scale

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.