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Finding the Fourth Proportional to 522,855.77, 721,764.26 and 442,702.22

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Solution

The fourth proportional to 522,855.77, 721,764.26 and 442,702.22 is: 611,118.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,855.77 : 721,764.26 = 442,702.22 : x
  2. Step 2: Convert to fraction form
    522,855.77/721,764.26 = 442,702.22/x
  3. Step 3: Cross multiply
    522,855.77x = 721,764.26 × 442,702.22
  4. Step 4: Simplify right side
    522,855.77x = 319,526,640,218.66
  5. Step 5: Solve for x
    x = 319,526,640,218.66/522,855.77
  6. Step 6: Final answer
    x = 611,118.13

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1.5x scale

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.