Home / 1,312,085.10-1,810,058.40-767,883.78

Finding the Fourth Proportional to 1,312,085.10, 1,810,058.40 and 767,883.78

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Solution

The fourth proportional to 1,312,085.10, 1,810,058.40 and 767,883.78 is: 1,059,317.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,085.10 : 1,810,058.40 = 767,883.78 : x
  2. Step 2: Convert to fraction form
    1,312,085.10/1,810,058.40 = 767,883.78/x
  3. Step 3: Cross multiply
    1,312,085.10x = 1,810,058.40 × 767,883.78
  4. Step 4: Simplify right side
    1,312,085.10x = 1,389,914,486,212.75
  5. Step 5: Solve for x
    x = 1,389,914,486,212.75/1,312,085.10
  6. Step 6: Final answer
    x = 1,059,317.33

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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.