Home / 865,666.80-1,298,500.20-853,225.20

Finding the Fourth Proportional to 865,666.80, 1,298,500.20 and 853,225.20

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Solution

The fourth proportional to 865,666.80, 1,298,500.20 and 853,225.20 is: 1,279,837.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,666.80 : 1,298,500.20 = 853,225.20 : x
  2. Step 2: Convert to fraction form
    865,666.80/1,298,500.20 = 853,225.20/x
  3. Step 3: Cross multiply
    865,666.80x = 1,298,500.20 × 853,225.20
  4. Step 4: Simplify right side
    865,666.80x = 1,107,913,092,845.04
  5. Step 5: Solve for x
    x = 1,107,913,092,845.04/865,666.80
  6. Step 6: Final answer
    x = 1,279,837.80

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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.