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Finding the Fourth Proportional to 899,069.80, 1,348,604.70 and 857,597.80

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Solution

The fourth proportional to 899,069.80, 1,348,604.70 and 857,597.80 is: 1,286,396.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,069.80 : 1,348,604.70 = 857,597.80 : x
  2. Step 2: Convert to fraction form
    899,069.80/1,348,604.70 = 857,597.80/x
  3. Step 3: Cross multiply
    899,069.80x = 1,348,604.70 × 857,597.80
  4. Step 4: Simplify right side
    899,069.80x = 1,156,560,423,789.66
  5. Step 5: Solve for x
    x = 1,156,560,423,789.66/899,069.80
  6. Step 6: Final answer
    x = 1,286,396.70

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Double scale
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Similar ratio
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1.5x scale

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.