Home / 1,920,736.80-2,880,256.50-1,021,965.48

Finding the Fourth Proportional to 1,920,736.80, 2,880,256.50 and 1,021,965.48

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Solution

The fourth proportional to 1,920,736.80, 2,880,256.50 and 1,021,965.48 is: 1,532,496.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,920,736.80 : 2,880,256.50 = 1,021,965.48 : x
  2. Step 2: Convert to fraction form
    1,920,736.80/2,880,256.50 = 1,021,965.48/x
  3. Step 3: Cross multiply
    1,920,736.80x = 2,880,256.50 × 1,021,965.48
  4. Step 4: Simplify right side
    1,920,736.80x = 2,943,522,716,545.62
  5. Step 5: Solve for x
    x = 2,943,522,716,545.62/1,920,736.80
  6. Step 6: Final answer
    x = 1,532,496.65

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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.