Home / 1,538,872.08-2,308,572.36-686,246.64

Finding the Fourth Proportional to 1,538,872.08, 2,308,572.36 and 686,246.64

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Solution

The fourth proportional to 1,538,872.08, 2,308,572.36 and 686,246.64 is: 1,029,487.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,538,872.08 : 2,308,572.36 = 686,246.64 : x
  2. Step 2: Convert to fraction form
    1,538,872.08/2,308,572.36 = 686,246.64/x
  3. Step 3: Cross multiply
    1,538,872.08x = 2,308,572.36 × 686,246.64
  4. Step 4: Simplify right side
    1,538,872.08x = 1,584,250,025,246.87
  5. Step 5: Solve for x
    x = 1,584,250,025,246.87/1,538,872.08
  6. Step 6: Final answer
    x = 1,029,487.80

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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.