Home / 1,105,736.12-1,657,949.70-431,029.80

Finding the Fourth Proportional to 1,105,736.12, 1,657,949.70 and 431,029.80

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Solution

The fourth proportional to 1,105,736.12, 1,657,949.70 and 431,029.80 is: 646,289.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,105,736.12 : 1,657,949.70 = 431,029.80 : x
  2. Step 2: Convert to fraction form
    1,105,736.12/1,657,949.70 = 431,029.80/x
  3. Step 3: Cross multiply
    1,105,736.12x = 1,657,949.70 × 431,029.80
  4. Step 4: Simplify right side
    1,105,736.12x = 714,625,727,601.06
  5. Step 5: Solve for x
    x = 714,625,727,601.06/1,105,736.12
  6. Step 6: Final answer
    x = 646,289.58

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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.