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Finding the Fourth Proportional to 541,314.80, 810,805.80 and 448,002.80

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Solution

The fourth proportional to 541,314.80, 810,805.80 and 448,002.80 is: 671,038.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,314.80 : 810,805.80 = 448,002.80 : x
  2. Step 2: Convert to fraction form
    541,314.80/810,805.80 = 448,002.80/x
  3. Step 3: Cross multiply
    541,314.80x = 810,805.80 × 448,002.80
  4. Step 4: Simplify right side
    541,314.80x = 363,243,268,656.24
  5. Step 5: Solve for x
    x = 363,243,268,656.24/541,314.80
  6. Step 6: Final answer
    x = 671,038.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.