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Finding the Fourth Proportional to 1,968,905.70, 2,953,358.55 and 849,161.70

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Solution

The fourth proportional to 1,968,905.70, 2,953,358.55 and 849,161.70 is: 1,273,742.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,968,905.70 : 2,953,358.55 = 849,161.70 : x
  2. Step 2: Convert to fraction form
    1,968,905.70/2,953,358.55 = 849,161.70/x
  3. Step 3: Cross multiply
    1,968,905.70x = 2,953,358.55 × 849,161.70
  4. Step 4: Simplify right side
    1,968,905.70x = 2,507,878,967,027.53
  5. Step 5: Solve for x
    x = 2,507,878,967,027.53/1,968,905.70
  6. Step 6: Final answer
    x = 1,273,742.55

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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.