Home / 831,009.60-1,245,983.04-493,960.32

Finding the Fourth Proportional to 831,009.60, 1,245,983.04 and 493,960.32

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Solution

The fourth proportional to 831,009.60, 1,245,983.04 and 493,960.32 is: 740,624.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,009.60 : 1,245,983.04 = 493,960.32 : x
  2. Step 2: Convert to fraction form
    831,009.60/1,245,983.04 = 493,960.32/x
  3. Step 3: Cross multiply
    831,009.60x = 1,245,983.04 × 493,960.32
  4. Step 4: Simplify right side
    831,009.60x = 615,466,181,152.97
  5. Step 5: Solve for x
    x = 615,466,181,152.97/831,009.60
  6. Step 6: Final answer
    x = 740,624.63

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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.