Home / 692,540.86-1,039,140.30-479,636.44

Finding the Fourth Proportional to 692,540.86, 1,039,140.30 and 479,636.44

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Solution

The fourth proportional to 692,540.86, 1,039,140.30 and 479,636.44 is: 719,682.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,540.86 : 1,039,140.30 = 479,636.44 : x
  2. Step 2: Convert to fraction form
    692,540.86/1,039,140.30 = 479,636.44/x
  3. Step 3: Cross multiply
    692,540.86x = 1,039,140.30 × 479,636.44
  4. Step 4: Simplify right side
    692,540.86x = 498,409,554,152.53
  5. Step 5: Solve for x
    x = 498,409,554,152.53/692,540.86
  6. Step 6: Final answer
    x = 719,682.52

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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.