Home / 851,130.87-1,174,560.31-469,164.03

Finding the Fourth Proportional to 851,130.87, 1,174,560.31 and 469,164.03

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Solution

The fourth proportional to 851,130.87, 1,174,560.31 and 469,164.03 is: 647,446.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,130.87 : 1,174,560.31 = 469,164.03 : x
  2. Step 2: Convert to fraction form
    851,130.87/1,174,560.31 = 469,164.03/x
  3. Step 3: Cross multiply
    851,130.87x = 1,174,560.31 × 469,164.03
  4. Step 4: Simplify right side
    851,130.87x = 551,061,440,299.03
  5. Step 5: Solve for x
    x = 551,061,440,299.03/851,130.87
  6. Step 6: Final answer
    x = 647,446.20

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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.