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Finding the Fourth Proportional to 611,573.52, 843,999.47 and 339,642.61

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Solution

The fourth proportional to 611,573.52, 843,999.47 and 339,642.61 is: 468,722.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,573.52 : 843,999.47 = 339,642.61 : x
  2. Step 2: Convert to fraction form
    611,573.52/843,999.47 = 339,642.61/x
  3. Step 3: Cross multiply
    611,573.52x = 843,999.47 × 339,642.61
  4. Step 4: Simplify right side
    611,573.52x = 286,658,182,829.42
  5. Step 5: Solve for x
    x = 286,658,182,829.42/611,573.52
  6. Step 6: Final answer
    x = 468,722.36

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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.