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Finding the Fourth Proportional to 1,628,412, 2,247,209.52 and 992,508

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Solution

The fourth proportional to 1,628,412, 2,247,209.52 and 992,508 is: 1,369,661.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,628,412 : 2,247,209.52 = 992,508 : x
  2. Step 2: Convert to fraction form
    1,628,412/2,247,209.52 = 992,508/x
  3. Step 3: Cross multiply
    1,628,412x = 2,247,209.52 × 992,508
  4. Step 4: Simplify right side
    1,628,412x = 2,230,373,426,276.16
  5. Step 5: Solve for x
    x = 2,230,373,426,276.16/1,628,412
  6. Step 6: Final answer
    x = 1,369,661.63

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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.