Home / 1,918,128.64-2,646,829.06-1,058,633.54

Finding the Fourth Proportional to 1,918,128.64, 2,646,829.06 and 1,058,633.54

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Solution

The fourth proportional to 1,918,128.64, 2,646,829.06 and 1,058,633.54 is: 1,460,810.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,918,128.64 : 2,646,829.06 = 1,058,633.54 : x
  2. Step 2: Convert to fraction form
    1,918,128.64/2,646,829.06 = 1,058,633.54/x
  3. Step 3: Cross multiply
    1,918,128.64x = 2,646,829.06 × 1,058,633.54
  4. Step 4: Simplify right side
    1,918,128.64x = 2,802,022,017,562.67
  5. Step 5: Solve for x
    x = 2,802,022,017,562.67/1,918,128.64
  6. Step 6: Final answer
    x = 1,460,810.27

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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.