Home / 831,669.89-1,147,719.40-487,753.87

Finding the Fourth Proportional to 831,669.89, 1,147,719.40 and 487,753.87

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Solution

The fourth proportional to 831,669.89, 1,147,719.40 and 487,753.87 is: 673,109.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,669.89 : 1,147,719.40 = 487,753.87 : x
  2. Step 2: Convert to fraction form
    831,669.89/1,147,719.40 = 487,753.87/x
  3. Step 3: Cross multiply
    831,669.89x = 1,147,719.40 × 487,753.87
  4. Step 4: Simplify right side
    831,669.89x = 559,804,576,585.31
  5. Step 5: Solve for x
    x = 559,804,576,585.31/831,669.89
  6. Step 6: Final answer
    x = 673,109.11

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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.