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Finding the Fourth Proportional to 486,044.33, 670,243.43 and 322,643.19

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Solution

The fourth proportional to 486,044.33, 670,243.43 and 322,643.19 is: 444,917.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,044.33 : 670,243.43 = 322,643.19 : x
  2. Step 2: Convert to fraction form
    486,044.33/670,243.43 = 322,643.19/x
  3. Step 3: Cross multiply
    486,044.33x = 670,243.43 × 322,643.19
  4. Step 4: Simplify right side
    486,044.33x = 216,249,476,718.53
  5. Step 5: Solve for x
    x = 216,249,476,718.53/486,044.33
  6. Step 6: Final answer
    x = 444,917.19

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Double scale
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1.5x scale

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.