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Finding the Fourth Proportional to 1,590,847, 2,195,369.22 and 875,455

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Solution

The fourth proportional to 1,590,847, 2,195,369.22 and 875,455 is: 1,208,128.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,590,847 : 2,195,369.22 = 875,455 : x
  2. Step 2: Convert to fraction form
    1,590,847/2,195,369.22 = 875,455/x
  3. Step 3: Cross multiply
    1,590,847x = 2,195,369.22 × 875,455
  4. Step 4: Simplify right side
    1,590,847x = 1,921,946,960,495.10
  5. Step 5: Solve for x
    x = 1,921,946,960,495.10/1,590,847
  6. Step 6: Final answer
    x = 1,208,128.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.