Home / 831,612.88-1,147,625.04-449,638.75

Finding the Fourth Proportional to 831,612.88, 1,147,625.04 and 449,638.75

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Solution

The fourth proportional to 831,612.88, 1,147,625.04 and 449,638.75 is: 620,501.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,612.88 : 1,147,625.04 = 449,638.75 : x
  2. Step 2: Convert to fraction form
    831,612.88/1,147,625.04 = 449,638.75/x
  3. Step 3: Cross multiply
    831,612.88x = 1,147,625.04 × 449,638.75
  4. Step 4: Simplify right side
    831,612.88x = 516,016,688,454.30
  5. Step 5: Solve for x
    x = 516,016,688,454.30/831,612.88
  6. Step 6: Final answer
    x = 620,501.08

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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.