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Finding the Fourth Proportional to 1,143,896, 1,715,800.92 and 345,156.32

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Solution

The fourth proportional to 1,143,896, 1,715,800.92 and 345,156.32 is: 517,721.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,143,896 : 1,715,800.92 = 345,156.32 : x
  2. Step 2: Convert to fraction form
    1,143,896/1,715,800.92 = 345,156.32/x
  3. Step 3: Cross multiply
    1,143,896x = 1,715,800.92 × 345,156.32
  4. Step 4: Simplify right side
    1,143,896x = 592,219,531,399.81
  5. Step 5: Solve for x
    x = 592,219,531,399.81/1,143,896
  6. Step 6: Final answer
    x = 517,721.48

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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.