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Finding the Fourth Proportional to 550,631.09, 760,010.60 and 376,271.91

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Solution

The fourth proportional to 550,631.09, 760,010.60 and 376,271.91 is: 519,350.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,631.09 : 760,010.60 = 376,271.91 : x
  2. Step 2: Convert to fraction form
    550,631.09/760,010.60 = 376,271.91/x
  3. Step 3: Cross multiply
    550,631.09x = 760,010.60 × 376,271.91
  4. Step 4: Simplify right side
    550,631.09x = 285,970,641,022.93
  5. Step 5: Solve for x
    x = 285,970,641,022.93/550,631.09
  6. Step 6: Final answer
    x = 519,350.70

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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.