Home / 839,987.80-1,259,868.30-334,920.40

Finding the Fourth Proportional to 839,987.80, 1,259,868.30 and 334,920.40

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Solution

The fourth proportional to 839,987.80, 1,259,868.30 and 334,920.40 is: 502,335.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,987.80 : 1,259,868.30 = 334,920.40 : x
  2. Step 2: Convert to fraction form
    839,987.80/1,259,868.30 = 334,920.40/x
  3. Step 3: Cross multiply
    839,987.80x = 1,259,868.30 × 334,920.40
  4. Step 4: Simplify right side
    839,987.80x = 421,955,594,983.32
  5. Step 5: Solve for x
    x = 421,955,594,983.32/839,987.80
  6. Step 6: Final answer
    x = 502,335.39

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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.