Home / 1,424,872.32-1,966,505.76-821,264.64

Finding the Fourth Proportional to 1,424,872.32, 1,966,505.76 and 821,264.64

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Solution

The fourth proportional to 1,424,872.32, 1,966,505.76 and 821,264.64 is: 1,133,450.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,424,872.32 : 1,966,505.76 = 821,264.64 : x
  2. Step 2: Convert to fraction form
    1,424,872.32/1,966,505.76 = 821,264.64/x
  3. Step 3: Cross multiply
    1,424,872.32x = 1,966,505.76 × 821,264.64
  4. Step 4: Simplify right side
    1,424,872.32x = 1,615,021,645,044.33
  5. Step 5: Solve for x
    x = 1,615,021,645,044.33/1,424,872.32
  6. Step 6: Final answer
    x = 1,133,450.08

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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.