Home / 839,729.04-1,259,463.72-307,125.52

Finding the Fourth Proportional to 839,729.04, 1,259,463.72 and 307,125.52

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Solution

The fourth proportional to 839,729.04, 1,259,463.72 and 307,125.52 is: 460,640.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,729.04 : 1,259,463.72 = 307,125.52 : x
  2. Step 2: Convert to fraction form
    839,729.04/1,259,463.72 = 307,125.52/x
  3. Step 3: Cross multiply
    839,729.04x = 1,259,463.72 × 307,125.52
  4. Step 4: Simplify right side
    839,729.04x = 386,813,449,926.13
  5. Step 5: Solve for x
    x = 386,813,449,926.13/839,729.04
  6. Step 6: Final answer
    x = 460,640.79

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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.