Home / 853,326.55-1,279,981.05-493,268.30

Finding the Fourth Proportional to 853,326.55, 1,279,981.05 and 493,268.30

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Solution

The fourth proportional to 853,326.55, 1,279,981.05 and 493,268.30 is: 739,897.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,326.55 : 1,279,981.05 = 493,268.30 : x
  2. Step 2: Convert to fraction form
    853,326.55/1,279,981.05 = 493,268.30/x
  3. Step 3: Cross multiply
    853,326.55x = 1,279,981.05 × 493,268.30
  4. Step 4: Simplify right side
    853,326.55x = 631,374,076,565.72
  5. Step 5: Solve for x
    x = 631,374,076,565.72/853,326.55
  6. Step 6: Final answer
    x = 739,897.38

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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.