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Finding the Fourth Proportional to 1,453,350, 2,005,623 and 817,446

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Solution

The fourth proportional to 1,453,350, 2,005,623 and 817,446 is: 1,128,075.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,453,350 : 2,005,623 = 817,446 : x
  2. Step 2: Convert to fraction form
    1,453,350/2,005,623 = 817,446/x
  3. Step 3: Cross multiply
    1,453,350x = 2,005,623 × 817,446
  4. Step 4: Simplify right side
    1,453,350x = 1,639,488,498,858
  5. Step 5: Solve for x
    x = 1,639,488,498,858/1,453,350
  6. Step 6: Final answer
    x = 1,128,075.48

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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.