Home / 1,759,021.92-2,638,005.12-748,136.16

Finding the Fourth Proportional to 1,759,021.92, 2,638,005.12 and 748,136.16

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Solution

The fourth proportional to 1,759,021.92, 2,638,005.12 and 748,136.16 is: 1,121,979.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,759,021.92 : 2,638,005.12 = 748,136.16 : x
  2. Step 2: Convert to fraction form
    1,759,021.92/2,638,005.12 = 748,136.16/x
  3. Step 3: Cross multiply
    1,759,021.92x = 2,638,005.12 × 748,136.16
  4. Step 4: Simplify right side
    1,759,021.92x = 1,973,587,020,537.14
  5. Step 5: Solve for x
    x = 1,973,587,020,537.14/1,759,021.92
  6. Step 6: Final answer
    x = 1,121,979.78

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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.