Home / 715,714.06-987,687.46-409,795.16

Finding the Fourth Proportional to 715,714.06, 987,687.46 and 409,795.16

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Solution

The fourth proportional to 715,714.06, 987,687.46 and 409,795.16 is: 565,518.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,714.06 : 987,687.46 = 409,795.16 : x
  2. Step 2: Convert to fraction form
    715,714.06/987,687.46 = 409,795.16/x
  3. Step 3: Cross multiply
    715,714.06x = 987,687.46 × 409,795.16
  4. Step 4: Simplify right side
    715,714.06x = 404,749,540,700.69
  5. Step 5: Solve for x
    x = 404,749,540,700.69/715,714.06
  6. Step 6: Final answer
    x = 565,518.50

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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.