Home / 3,161,915.30-4,742,857.08-765,759.87

Finding the Fourth Proportional to 3,161,915.30, 4,742,857.08 and 765,759.87

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Solution

The fourth proportional to 3,161,915.30, 4,742,857.08 and 765,759.87 is: 1,148,635.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,161,915.30 : 4,742,857.08 = 765,759.87 : x
  2. Step 2: Convert to fraction form
    3,161,915.30/4,742,857.08 = 765,759.87/x
  3. Step 3: Cross multiply
    3,161,915.30x = 4,742,857.08 × 765,759.87
  4. Step 4: Simplify right side
    3,161,915.30x = 3,631,889,621,009.38
  5. Step 5: Solve for x
    x = 3,631,889,621,009.38/3,161,915.30
  6. Step 6: Final answer
    x = 1,148,635.96

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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.