Home / 831,372.90-1,247,426.55-404,672.10

Finding the Fourth Proportional to 831,372.90, 1,247,426.55 and 404,672.10

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Solution

The fourth proportional to 831,372.90, 1,247,426.55 and 404,672.10 is: 607,186.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,372.90 : 1,247,426.55 = 404,672.10 : x
  2. Step 2: Convert to fraction form
    831,372.90/1,247,426.55 = 404,672.10/x
  3. Step 3: Cross multiply
    831,372.90x = 1,247,426.55 × 404,672.10
  4. Step 4: Simplify right side
    831,372.90x = 504,798,721,584.26
  5. Step 5: Solve for x
    x = 504,798,721,584.26/831,372.90
  6. Step 6: Final answer
    x = 607,186.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.