Home / 579,820.50-800,158.86-321,702.18

Finding the Fourth Proportional to 579,820.50, 800,158.86 and 321,702.18

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Solution

The fourth proportional to 579,820.50, 800,158.86 and 321,702.18 is: 443,952.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,820.50 : 800,158.86 = 321,702.18 : x
  2. Step 2: Convert to fraction form
    579,820.50/800,158.86 = 321,702.18/x
  3. Step 3: Cross multiply
    579,820.50x = 800,158.86 × 321,702.18
  4. Step 4: Simplify right side
    579,820.50x = 257,412,849,608.32
  5. Step 5: Solve for x
    x = 257,412,849,608.32/579,820.50
  6. Step 6: Final answer
    x = 443,952.65

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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.