Home / 818,045.73-1,227,130.16-218,993.63

Finding the Fourth Proportional to 818,045.73, 1,227,130.16 and 218,993.63

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Solution

The fourth proportional to 818,045.73, 1,227,130.16 and 218,993.63 is: 328,506.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,045.73 : 1,227,130.16 = 218,993.63 : x
  2. Step 2: Convert to fraction form
    818,045.73/1,227,130.16 = 218,993.63/x
  3. Step 3: Cross multiply
    818,045.73x = 1,227,130.16 × 218,993.63
  4. Step 4: Simplify right side
    818,045.73x = 268,733,680,990.26
  5. Step 5: Solve for x
    x = 268,733,680,990.26/818,045.73
  6. Step 6: Final answer
    x = 328,506.92

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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.