Home / 1,918,018.53-2,646,852.54-1,058,578.78

Finding the Fourth Proportional to 1,918,018.53, 2,646,852.54 and 1,058,578.78

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Solution

The fourth proportional to 1,918,018.53, 2,646,852.54 and 1,058,578.78 is: 1,460,831.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,918,018.53 : 2,646,852.54 = 1,058,578.78 : x
  2. Step 2: Convert to fraction form
    1,918,018.53/2,646,852.54 = 1,058,578.78/x
  3. Step 3: Cross multiply
    1,918,018.53x = 2,646,852.54 × 1,058,578.78
  4. Step 4: Simplify right side
    1,918,018.53x = 2,801,901,932,633.10
  5. Step 5: Solve for x
    x = 2,801,901,932,633.10/1,918,018.53
  6. Step 6: Final answer
    x = 1,460,831.52

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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.