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Finding the Fourth Proportional to 555,544.50, 766,651.44 and 300,897.54

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Solution

The fourth proportional to 555,544.50, 766,651.44 and 300,897.54 is: 415,238.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,544.50 : 766,651.44 = 300,897.54 : x
  2. Step 2: Convert to fraction form
    555,544.50/766,651.44 = 300,897.54/x
  3. Step 3: Cross multiply
    555,544.50x = 766,651.44 × 300,897.54
  4. Step 4: Simplify right side
    555,544.50x = 230,683,532,333.46
  5. Step 5: Solve for x
    x = 230,683,532,333.46/555,544.50
  6. Step 6: Final answer
    x = 415,238.62

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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.