Home / 864,109.40-1,296,164.10-548,922.20

Finding the Fourth Proportional to 864,109.40, 1,296,164.10 and 548,922.20

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Solution

The fourth proportional to 864,109.40, 1,296,164.10 and 548,922.20 is: 823,383.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,109.40 : 1,296,164.10 = 548,922.20 : x
  2. Step 2: Convert to fraction form
    864,109.40/1,296,164.10 = 548,922.20/x
  3. Step 3: Cross multiply
    864,109.40x = 1,296,164.10 × 548,922.20
  4. Step 4: Simplify right side
    864,109.40x = 711,493,249,333.02
  5. Step 5: Solve for x
    x = 711,493,249,333.02/864,109.40
  6. Step 6: Final answer
    x = 823,383.30

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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.