Home / 990,448.10-1,485,496.51-450,578.95

Finding the Fourth Proportional to 990,448.10, 1,485,496.51 and 450,578.95

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Solution

The fourth proportional to 990,448.10, 1,485,496.51 and 450,578.95 is: 675,788.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,448.10 : 1,485,496.51 = 450,578.95 : x
  2. Step 2: Convert to fraction form
    990,448.10/1,485,496.51 = 450,578.95/x
  3. Step 3: Cross multiply
    990,448.10x = 1,485,496.51 × 450,578.95
  4. Step 4: Simplify right side
    990,448.10x = 669,333,463,754.70
  5. Step 5: Solve for x
    x = 669,333,463,754.70/990,448.10
  6. Step 6: Final answer
    x = 675,788.53

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1.5x scale

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.