Home / 831,090.78-1,246,558.41-357,687.90

Finding the Fourth Proportional to 831,090.78, 1,246,558.41 and 357,687.90

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Solution

The fourth proportional to 831,090.78, 1,246,558.41 and 357,687.90 is: 536,498.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,090.78 : 1,246,558.41 = 357,687.90 : x
  2. Step 2: Convert to fraction form
    831,090.78/1,246,558.41 = 357,687.90/x
  3. Step 3: Cross multiply
    831,090.78x = 1,246,558.41 × 357,687.90
  4. Step 4: Simplify right side
    831,090.78x = 445,878,859,900.24
  5. Step 5: Solve for x
    x = 445,878,859,900.24/831,090.78
  6. Step 6: Final answer
    x = 536,498.38

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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.