Home / 839,427.39-1,259,321.00-270,840.87

Finding the Fourth Proportional to 839,427.39, 1,259,321.00 and 270,840.87

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Solution

The fourth proportional to 839,427.39, 1,259,321.00 and 270,840.87 is: 406,319.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,427.39 : 1,259,321.00 = 270,840.87 : x
  2. Step 2: Convert to fraction form
    839,427.39/1,259,321.00 = 270,840.87/x
  3. Step 3: Cross multiply
    839,427.39x = 1,259,321.00 × 270,840.87
  4. Step 4: Simplify right side
    839,427.39x = 341,075,593,895.07
  5. Step 5: Solve for x
    x = 341,075,593,895.07/839,427.39
  6. Step 6: Final answer
    x = 406,319.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.