Home / 1,071,820.55-1,606,507.73-431,714.36

Finding the Fourth Proportional to 1,071,820.55, 1,606,507.73 and 431,714.36

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Solution

The fourth proportional to 1,071,820.55, 1,606,507.73 and 431,714.36 is: 647,078.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,071,820.55 : 1,606,507.73 = 431,714.36 : x
  2. Step 2: Convert to fraction form
    1,071,820.55/1,606,507.73 = 431,714.36/x
  3. Step 3: Cross multiply
    1,071,820.55x = 1,606,507.73 × 431,714.36
  4. Step 4: Simplify right side
    1,071,820.55x = 693,552,450,932.02
  5. Step 5: Solve for x
    x = 693,552,450,932.02/1,071,820.55
  6. Step 6: Final answer
    x = 647,078.89

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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.