Home / 1,521,807.75-2,100,160.71-842,744.25

Finding the Fourth Proportional to 1,521,807.75, 2,100,160.71 and 842,744.25

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Solution

The fourth proportional to 1,521,807.75, 2,100,160.71 and 842,744.25 is: 1,163,023.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,521,807.75 : 2,100,160.71 = 842,744.25 : x
  2. Step 2: Convert to fraction form
    1,521,807.75/2,100,160.71 = 842,744.25/x
  3. Step 3: Cross multiply
    1,521,807.75x = 2,100,160.71 × 842,744.25
  4. Step 4: Simplify right side
    1,521,807.75x = 1,769,898,362,428.42
  5. Step 5: Solve for x
    x = 1,769,898,362,428.42/1,521,807.75
  6. Step 6: Final answer
    x = 1,163,023.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.