Home / 839,639.90-1,259,146.38-270,878.16

Finding the Fourth Proportional to 839,639.90, 1,259,146.38 and 270,878.16

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Solution

The fourth proportional to 839,639.90, 1,259,146.38 and 270,878.16 is: 406,216.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,639.90 : 1,259,146.38 = 270,878.16 : x
  2. Step 2: Convert to fraction form
    839,639.90/1,259,146.38 = 270,878.16/x
  3. Step 3: Cross multiply
    839,639.90x = 1,259,146.38 × 270,878.16
  4. Step 4: Simplify right side
    839,639.90x = 341,075,254,585.06
  5. Step 5: Solve for x
    x = 341,075,254,585.06/839,639.90
  6. Step 6: Final answer
    x = 406,216.11

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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.