Home / 831,360.98-1,147,277.66-449,387.76

Finding the Fourth Proportional to 831,360.98, 1,147,277.66 and 449,387.76

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Solution

The fourth proportional to 831,360.98, 1,147,277.66 and 449,387.76 is: 620,154.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,360.98 : 1,147,277.66 = 449,387.76 : x
  2. Step 2: Convert to fraction form
    831,360.98/1,147,277.66 = 449,387.76/x
  3. Step 3: Cross multiply
    831,360.98x = 1,147,277.66 × 449,387.76
  4. Step 4: Simplify right side
    831,360.98x = 515,572,535,478.50
  5. Step 5: Solve for x
    x = 515,572,535,478.50/831,360.98
  6. Step 6: Final answer
    x = 620,154.84

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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.