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Finding the Fourth Proportional to 368,580.62, 508,518.52 and 300,480.18

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Solution

The fourth proportional to 368,580.62, 508,518.52 and 300,480.18 is: 414,562.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,580.62 : 508,518.52 = 300,480.18 : x
  2. Step 2: Convert to fraction form
    368,580.62/508,518.52 = 300,480.18/x
  3. Step 3: Cross multiply
    368,580.62x = 508,518.52 × 300,480.18
  4. Step 4: Simplify right side
    368,580.62x = 152,799,732,377.94
  5. Step 5: Solve for x
    x = 152,799,732,377.94/368,580.62
  6. Step 6: Final answer
    x = 414,562.58

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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.