Home / 831,109.68-1,146,520.44-520,956.36

Finding the Fourth Proportional to 831,109.68, 1,146,520.44 and 520,956.36

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Solution

The fourth proportional to 831,109.68, 1,146,520.44 and 520,956.36 is: 718,662.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,109.68 : 1,146,520.44 = 520,956.36 : x
  2. Step 2: Convert to fraction form
    831,109.68/1,146,520.44 = 520,956.36/x
  3. Step 3: Cross multiply
    831,109.68x = 1,146,520.44 × 520,956.36
  4. Step 4: Simplify right side
    831,109.68x = 597,287,115,088.00
  5. Step 5: Solve for x
    x = 597,287,115,088.00/831,109.68
  6. Step 6: Final answer
    x = 718,662.20

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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.