Home / 818,354.88-1,227,821.76-286,022.88

Finding the Fourth Proportional to 818,354.88, 1,227,821.76 and 286,022.88

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Solution

The fourth proportional to 818,354.88, 1,227,821.76 and 286,022.88 is: 429,135.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,354.88 : 1,227,821.76 = 286,022.88 : x
  2. Step 2: Convert to fraction form
    818,354.88/1,227,821.76 = 286,022.88/x
  3. Step 3: Cross multiply
    818,354.88x = 1,227,821.76 × 286,022.88
  4. Step 4: Simplify right side
    818,354.88x = 351,185,115,921.87
  5. Step 5: Solve for x
    x = 351,185,115,921.87/818,354.88
  6. Step 6: Final answer
    x = 429,135.48

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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.