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Finding the Fourth Proportional to 548,663.65, 757,042.39 and 376,518.81

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Solution

The fourth proportional to 548,663.65, 757,042.39 and 376,518.81 is: 519,518.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,663.65 : 757,042.39 = 376,518.81 : x
  2. Step 2: Convert to fraction form
    548,663.65/757,042.39 = 376,518.81/x
  3. Step 3: Cross multiply
    548,663.65x = 757,042.39 × 376,518.81
  4. Step 4: Simplify right side
    548,663.65x = 285,040,699,802.36
  5. Step 5: Solve for x
    x = 285,040,699,802.36/548,663.65
  6. Step 6: Final answer
    x = 519,518.11

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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.