Home / 818,965.89-1,228,623.80-286,504.29

Finding the Fourth Proportional to 818,965.89, 1,228,623.80 and 286,504.29

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Solution

The fourth proportional to 818,965.89, 1,228,623.80 and 286,504.29 is: 429,817.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,965.89 : 1,228,623.80 = 286,504.29 : x
  2. Step 2: Convert to fraction form
    818,965.89/1,228,623.80 = 286,504.29/x
  3. Step 3: Cross multiply
    818,965.89x = 1,228,623.80 × 286,504.29
  4. Step 4: Simplify right side
    818,965.89x = 352,005,988,063.58
  5. Step 5: Solve for x
    x = 352,005,988,063.58/818,965.89
  6. Step 6: Final answer
    x = 429,817.64

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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.