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Finding the Fourth Proportional to 555,618.12, 766,752.24 and 300,970.32

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Solution

The fourth proportional to 555,618.12, 766,752.24 and 300,970.32 is: 415,338.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,618.12 : 766,752.24 = 300,970.32 : x
  2. Step 2: Convert to fraction form
    555,618.12/766,752.24 = 300,970.32/x
  3. Step 3: Cross multiply
    555,618.12x = 766,752.24 × 300,970.32
  4. Step 4: Simplify right side
    555,618.12x = 230,769,667,033.52
  5. Step 5: Solve for x
    x = 230,769,667,033.52/555,618.12
  6. Step 6: Final answer
    x = 415,338.63

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.