Home / 1,647,039.90-2,272,809.51-921,765.18

Finding the Fourth Proportional to 1,647,039.90, 2,272,809.51 and 921,765.18

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Solution

The fourth proportional to 1,647,039.90, 2,272,809.51 and 921,765.18 is: 1,271,976.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,647,039.90 : 2,272,809.51 = 921,765.18 : x
  2. Step 2: Convert to fraction form
    1,647,039.90/2,272,809.51 = 921,765.18/x
  3. Step 3: Cross multiply
    1,647,039.90x = 2,272,809.51 × 921,765.18
  4. Step 4: Simplify right side
    1,647,039.90x = 2,094,996,667,090.86
  5. Step 5: Solve for x
    x = 2,094,996,667,090.86/1,647,039.90
  6. Step 6: Final answer
    x = 1,271,976.88

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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.