Home / 689,699.34-1,034,537.06-310,351.64

Finding the Fourth Proportional to 689,699.34, 1,034,537.06 and 310,351.64

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Solution

The fourth proportional to 689,699.34, 1,034,537.06 and 310,351.64 is: 465,522.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,699.34 : 1,034,537.06 = 310,351.64 : x
  2. Step 2: Convert to fraction form
    689,699.34/1,034,537.06 = 310,351.64/x
  3. Step 3: Cross multiply
    689,699.34x = 1,034,537.06 × 310,351.64
  4. Step 4: Simplify right side
    689,699.34x = 321,070,268,814.97
  5. Step 5: Solve for x
    x = 321,070,268,814.97/689,699.34
  6. Step 6: Final answer
    x = 465,522.08

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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.