Home / 790,821.60-1,185,987.03-285,316.84

Finding the Fourth Proportional to 790,821.60, 1,185,987.03 and 285,316.84

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Solution

The fourth proportional to 790,821.60, 1,185,987.03 and 285,316.84 is: 427,886.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,821.60 : 1,185,987.03 = 285,316.84 : x
  2. Step 2: Convert to fraction form
    790,821.60/1,185,987.03 = 285,316.84/x
  3. Step 3: Cross multiply
    790,821.60x = 1,185,987.03 × 285,316.84
  4. Step 4: Simplify right side
    790,821.60x = 338,382,071,680.59
  5. Step 5: Solve for x
    x = 338,382,071,680.59/790,821.60
  6. Step 6: Final answer
    x = 427,886.73

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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.