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Finding the Fourth Proportional to 555,437.82, 766,502.67 and 300,788.94

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Solution

The fourth proportional to 555,437.82, 766,502.67 and 300,788.94 is: 415,087.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,437.82 : 766,502.67 = 300,788.94 : x
  2. Step 2: Convert to fraction form
    555,437.82/766,502.67 = 300,788.94/x
  3. Step 3: Cross multiply
    555,437.82x = 766,502.67 × 300,788.94
  4. Step 4: Simplify right side
    555,437.82x = 230,555,525,616.47
  5. Step 5: Solve for x
    x = 230,555,525,616.47/555,437.82
  6. Step 6: Final answer
    x = 415,087.91

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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.