Home / 831,962.36-1,148,108.04-449,989.16

Finding the Fourth Proportional to 831,962.36, 1,148,108.04 and 449,989.16

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Solution

The fourth proportional to 831,962.36, 1,148,108.04 and 449,989.16 is: 620,985.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,962.36 : 1,148,108.04 = 449,989.16 : x
  2. Step 2: Convert to fraction form
    831,962.36/1,148,108.04 = 449,989.16/x
  3. Step 3: Cross multiply
    831,962.36x = 1,148,108.04 × 449,989.16
  4. Step 4: Simplify right side
    831,962.36x = 516,636,166,768.31
  5. Step 5: Solve for x
    x = 516,636,166,768.31/831,962.36
  6. Step 6: Final answer
    x = 620,985.02

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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.