Home / 851,841.52-1,277,388.02-318,988.80

Finding the Fourth Proportional to 851,841.52, 1,277,388.02 and 318,988.80

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Solution

The fourth proportional to 851,841.52, 1,277,388.02 and 318,988.80 is: 478,343.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,841.52 : 1,277,388.02 = 318,988.80 : x
  2. Step 2: Convert to fraction form
    851,841.52/1,277,388.02 = 318,988.80/x
  3. Step 3: Cross multiply
    851,841.52x = 1,277,388.02 × 318,988.80
  4. Step 4: Simplify right side
    851,841.52x = 407,472,471,634.18
  5. Step 5: Solve for x
    x = 407,472,471,634.18/851,841.52
  6. Step 6: Final answer
    x = 478,343.05

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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.