Home / 778,960.22-1,075,014.87-439,304.54

Finding the Fourth Proportional to 778,960.22, 1,075,014.87 and 439,304.54

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Solution

The fourth proportional to 778,960.22, 1,075,014.87 and 439,304.54 is: 606,268.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,960.22 : 1,075,014.87 = 439,304.54 : x
  2. Step 2: Convert to fraction form
    778,960.22/1,075,014.87 = 439,304.54/x
  3. Step 3: Cross multiply
    778,960.22x = 1,075,014.87 × 439,304.54
  4. Step 4: Simplify right side
    778,960.22x = 472,258,912,958.51
  5. Step 5: Solve for x
    x = 472,258,912,958.51/778,960.22
  6. Step 6: Final answer
    x = 606,268.33

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1.5x scale

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.