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Finding the Fourth Proportional to 1,686,487, 2,525,677 and 964,640.32

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Solution

The fourth proportional to 1,686,487, 2,525,677 and 964,640.32 is: 1,444,641.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,686,487 : 2,525,677 = 964,640.32 : x
  2. Step 2: Convert to fraction form
    1,686,487/2,525,677 = 964,640.32/x
  3. Step 3: Cross multiply
    1,686,487x = 2,525,677 × 964,640.32
  4. Step 4: Simplify right side
    1,686,487x = 2,436,369,869,496.64
  5. Step 5: Solve for x
    x = 2,436,369,869,496.64/1,686,487
  6. Step 6: Final answer
    x = 1,444,641.95

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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.