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Finding the Fourth Proportional to 1,560,564, 2,153,578.32 and 845,172

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Solution

The fourth proportional to 1,560,564, 2,153,578.32 and 845,172 is: 1,166,337.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,560,564 : 2,153,578.32 = 845,172 : x
  2. Step 2: Convert to fraction form
    1,560,564/2,153,578.32 = 845,172/x
  3. Step 3: Cross multiply
    1,560,564x = 2,153,578.32 × 845,172
  4. Step 4: Simplify right side
    1,560,564x = 1,820,144,095,871.04
  5. Step 5: Solve for x
    x = 1,820,144,095,871.04/1,560,564
  6. Step 6: Final answer
    x = 1,166,337.36

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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.