Home / 853,326.05-1,279,980.30-493,267.80

Finding the Fourth Proportional to 853,326.05, 1,279,980.30 and 493,267.80

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Solution

The fourth proportional to 853,326.05, 1,279,980.30 and 493,267.80 is: 739,896.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,326.05 : 1,279,980.30 = 493,267.80 : x
  2. Step 2: Convert to fraction form
    853,326.05/1,279,980.30 = 493,267.80/x
  3. Step 3: Cross multiply
    853,326.05x = 1,279,980.30 × 493,267.80
  4. Step 4: Simplify right side
    853,326.05x = 631,373,064,158.00
  5. Step 5: Solve for x
    x = 631,373,064,158.00/853,326.05
  6. Step 6: Final answer
    x = 739,896.63

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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.