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Finding the Fourth Proportional to 755,279.29, 1,042,311 and 411,127.77

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Solution

The fourth proportional to 755,279.29, 1,042,311 and 411,127.77 is: 567,370.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,279.29 : 1,042,311 = 411,127.77 : x
  2. Step 2: Convert to fraction form
    755,279.29/1,042,311 = 411,127.77/x
  3. Step 3: Cross multiply
    755,279.29x = 1,042,311 × 411,127.77
  4. Step 4: Simplify right side
    755,279.29x = 428,522,997,076.47
  5. Step 5: Solve for x
    x = 428,522,997,076.47/755,279.29
  6. Step 6: Final answer
    x = 567,370.25

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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.