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Finding the Fourth Proportional to 555,372.41, 766,417.59 and 300,723.59

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Solution

The fourth proportional to 555,372.41, 766,417.59 and 300,723.59 is: 415,000.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,372.41 : 766,417.59 = 300,723.59 : x
  2. Step 2: Convert to fraction form
    555,372.41/766,417.59 = 300,723.59/x
  3. Step 3: Cross multiply
    555,372.41x = 766,417.59 × 300,723.59
  4. Step 4: Simplify right side
    555,372.41x = 230,479,845,271.86
  5. Step 5: Solve for x
    x = 230,479,845,271.86/555,372.41
  6. Step 6: Final answer
    x = 415,000.54

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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.