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Finding the Fourth Proportional to 550,768.69, 760,545.48 and 344,390.77

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Solution

The fourth proportional to 550,768.69, 760,545.48 and 344,390.77 is: 475,562.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,768.69 : 760,545.48 = 344,390.77 : x
  2. Step 2: Convert to fraction form
    550,768.69/760,545.48 = 344,390.77/x
  3. Step 3: Cross multiply
    550,768.69x = 760,545.48 × 344,390.77
  4. Step 4: Simplify right side
    550,768.69x = 261,924,843,477.22
  5. Step 5: Solve for x
    x = 261,924,843,477.22/550,768.69
  6. Step 6: Final answer
    x = 475,562.33

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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.