Home / 831,296.04-1,147,201.28-487,049.60

Finding the Fourth Proportional to 831,296.04, 1,147,201.28 and 487,049.60

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Solution

The fourth proportional to 831,296.04, 1,147,201.28 and 487,049.60 is: 672,135.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,296.04 : 1,147,201.28 = 487,049.60 : x
  2. Step 2: Convert to fraction form
    831,296.04/1,147,201.28 = 487,049.60/x
  3. Step 3: Cross multiply
    831,296.04x = 1,147,201.28 × 487,049.60
  4. Step 4: Simplify right side
    831,296.04x = 558,743,924,543.49
  5. Step 5: Solve for x
    x = 558,743,924,543.49/831,296.04
  6. Step 6: Final answer
    x = 672,135.92

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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.