Home / 851,290.20-1,276,935.30-779,405.40

Finding the Fourth Proportional to 851,290.20, 1,276,935.30 and 779,405.40

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Solution

The fourth proportional to 851,290.20, 1,276,935.30 and 779,405.40 is: 1,169,108.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,290.20 : 1,276,935.30 = 779,405.40 : x
  2. Step 2: Convert to fraction form
    851,290.20/1,276,935.30 = 779,405.40/x
  3. Step 3: Cross multiply
    851,290.20x = 1,276,935.30 × 779,405.40
  4. Step 4: Simplify right side
    851,290.20x = 995,250,268,270.62
  5. Step 5: Solve for x
    x = 995,250,268,270.62/851,290.20
  6. Step 6: Final answer
    x = 1,169,108.10

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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.