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Finding the Fourth Proportional to 2,689,296.40, 3,774,462.80 and 2,689,296.40

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Solution

The fourth proportional to 2,689,296.40, 3,774,462.80 and 2,689,296.40 is: 3,774,462.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,689,296.40 : 3,774,462.80 = 2,689,296.40 : x
  2. Step 2: Convert to fraction form
    2,689,296.40/3,774,462.80 = 2,689,296.40/x
  3. Step 3: Cross multiply
    2,689,296.40x = 3,774,462.80 × 2,689,296.40
  4. Step 4: Simplify right side
    2,689,296.40x = 10,150,649,219,973.92
  5. Step 5: Solve for x
    x = 10,150,649,219,973.92/2,689,296.40
  6. Step 6: Final answer
    x = 3,774,462.80

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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 (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.