Home / 1,918,017.78-2,646,851.50-1,058,578.02

Finding the Fourth Proportional to 1,918,017.78, 2,646,851.50 and 1,058,578.02

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Solution

The fourth proportional to 1,918,017.78, 2,646,851.50 and 1,058,578.02 is: 1,460,830.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,918,017.78 : 2,646,851.50 = 1,058,578.02 : x
  2. Step 2: Convert to fraction form
    1,918,017.78/2,646,851.50 = 1,058,578.02/x
  3. Step 3: Cross multiply
    1,918,017.78x = 2,646,851.50 × 1,058,578.02
  4. Step 4: Simplify right side
    1,918,017.78x = 2,801,898,820,104.03
  5. Step 5: Solve for x
    x = 2,801,898,820,104.03/1,918,017.78
  6. Step 6: Final answer
    x = 1,460,830.47

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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.