Home / 1,992,802.64-2,989,678.26-644,965.25

Finding the Fourth Proportional to 1,992,802.64, 2,989,678.26 and 644,965.25

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Solution

The fourth proportional to 1,992,802.64, 2,989,678.26 and 644,965.25 is: 967,601.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992,802.64 : 2,989,678.26 = 644,965.25 : x
  2. Step 2: Convert to fraction form
    1,992,802.64/2,989,678.26 = 644,965.25/x
  3. Step 3: Cross multiply
    1,992,802.64x = 2,989,678.26 × 644,965.25
  4. Step 4: Simplify right side
    1,992,802.64x = 1,928,238,587,039.70
  5. Step 5: Solve for x
    x = 1,928,238,587,039.70/1,992,802.64
  6. Step 6: Final answer
    x = 967,601.38

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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.