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Finding the Fourth Proportional to 555,290.33, 766,303.02 and 300,641.51

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Solution

The fourth proportional to 555,290.33, 766,303.02 and 300,641.51 is: 414,886.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,290.33 : 766,303.02 = 300,641.51 : x
  2. Step 2: Convert to fraction form
    555,290.33/766,303.02 = 300,641.51/x
  3. Step 3: Cross multiply
    555,290.33x = 766,303.02 × 300,641.51
  4. Step 4: Simplify right side
    555,290.33x = 230,382,493,218.85
  5. Step 5: Solve for x
    x = 230,382,493,218.85/555,290.33
  6. Step 6: Final answer
    x = 414,886.56

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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.