Home / 1,981,574.42-2,972,356.16-561,642.80

Finding the Fourth Proportional to 1,981,574.42, 2,972,356.16 and 561,642.80

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Solution

The fourth proportional to 1,981,574.42, 2,972,356.16 and 561,642.80 is: 842,462.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,981,574.42 : 2,972,356.16 = 561,642.80 : x
  2. Step 2: Convert to fraction form
    1,981,574.42/2,972,356.16 = 561,642.80/x
  3. Step 3: Cross multiply
    1,981,574.42x = 2,972,356.16 × 561,642.80
  4. Step 4: Simplify right side
    1,981,574.42x = 1,669,402,418,629.65
  5. Step 5: Solve for x
    x = 1,669,402,418,629.65/1,981,574.42
  6. Step 6: Final answer
    x = 842,462.64

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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.