Home / 680,339.61-1,020,841.38-427,738.86

Finding the Fourth Proportional to 680,339.61, 1,020,841.38 and 427,738.86

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Solution

The fourth proportional to 680,339.61, 1,020,841.38 and 427,738.86 is: 641,817.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,339.61 : 1,020,841.38 = 427,738.86 : x
  2. Step 2: Convert to fraction form
    680,339.61/1,020,841.38 = 427,738.86/x
  3. Step 3: Cross multiply
    680,339.61x = 1,020,841.38 × 427,738.86
  4. Step 4: Simplify right side
    680,339.61x = 436,653,528,122.03
  5. Step 5: Solve for x
    x = 436,653,528,122.03/680,339.61
  6. Step 6: Final answer
    x = 641,817.00

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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.