Home / 686,012.38-1,029,369.58-326,589.46

Finding the Fourth Proportional to 686,012.38, 1,029,369.58 and 326,589.46

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Solution

The fourth proportional to 686,012.38, 1,029,369.58 and 326,589.46 is: 490,051.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,012.38 : 1,029,369.58 = 326,589.46 : x
  2. Step 2: Convert to fraction form
    686,012.38/1,029,369.58 = 326,589.46/x
  3. Step 3: Cross multiply
    686,012.38x = 1,029,369.58 × 326,589.46
  4. Step 4: Simplify right side
    686,012.38x = 336,181,255,272.63
  5. Step 5: Solve for x
    x = 336,181,255,272.63/686,012.38
  6. Step 6: Final answer
    x = 490,051.30

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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.