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Finding the Fourth Proportional to 831,705.60, 1,248,141.60 and 532,912.80

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Solution

The fourth proportional to 831,705.60, 1,248,141.60 and 532,912.80 is: 799,742.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,705.60 : 1,248,141.60 = 532,912.80 : x
  2. Step 2: Convert to fraction form
    831,705.60/1,248,141.60 = 532,912.80/x
  3. Step 3: Cross multiply
    831,705.60x = 1,248,141.60 × 532,912.80
  4. Step 4: Simplify right side
    831,705.60x = 665,150,634,852.48
  5. Step 5: Solve for x
    x = 665,150,634,852.48/831,705.60
  6. Step 6: Final answer
    x = 799,742.88

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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.