Home / 831,297.30-1,247,076.63-270,200.58

Finding the Fourth Proportional to 831,297.30, 1,247,076.63 and 270,200.58

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Solution

The fourth proportional to 831,297.30, 1,247,076.63 and 270,200.58 is: 405,343.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,297.30 : 1,247,076.63 = 270,200.58 : x
  2. Step 2: Convert to fraction form
    831,297.30/1,247,076.63 = 270,200.58/x
  3. Step 3: Cross multiply
    831,297.30x = 1,247,076.63 × 270,200.58
  4. Step 4: Simplify right side
    831,297.30x = 336,960,828,730.45
  5. Step 5: Solve for x
    x = 336,960,828,730.45/831,297.30
  6. Step 6: Final answer
    x = 405,343.35

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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.