Home / 1,422,810.29-1,963,428.48-811,160.03

Finding the Fourth Proportional to 1,422,810.29, 1,963,428.48 and 811,160.03

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Solution

The fourth proportional to 1,422,810.29, 1,963,428.48 and 811,160.03 is: 1,119,372.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,422,810.29 : 1,963,428.48 = 811,160.03 : x
  2. Step 2: Convert to fraction form
    1,422,810.29/1,963,428.48 = 811,160.03/x
  3. Step 3: Cross multiply
    1,422,810.29x = 1,963,428.48 × 811,160.03
  4. Step 4: Simplify right side
    1,422,810.29x = 1,592,654,694,922.51
  5. Step 5: Solve for x
    x = 1,592,654,694,922.51/1,422,810.29
  6. Step 6: Final answer
    x = 1,119,372.49

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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.