Home / 1,989,145.09-2,984,599.77-1,042,290.73

Finding the Fourth Proportional to 1,989,145.09, 2,984,599.77 and 1,042,290.73

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Solution

The fourth proportional to 1,989,145.09, 2,984,599.77 and 1,042,290.73 is: 1,563,898.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,989,145.09 : 2,984,599.77 = 1,042,290.73 : x
  2. Step 2: Convert to fraction form
    1,989,145.09/2,984,599.77 = 1,042,290.73/x
  3. Step 3: Cross multiply
    1,989,145.09x = 2,984,599.77 × 1,042,290.73
  4. Step 4: Simplify right side
    1,989,145.09x = 3,110,820,673,031.13
  5. Step 5: Solve for x
    x = 3,110,820,673,031.13/1,989,145.09
  6. Step 6: Final answer
    x = 1,563,898.32

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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.