Home / 911,021.55-1,366,392.18-303,820.53

Finding the Fourth Proportional to 911,021.55, 1,366,392.18 and 303,820.53

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Solution

The fourth proportional to 911,021.55, 1,366,392.18 and 303,820.53 is: 455,684.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,021.55 : 1,366,392.18 = 303,820.53 : x
  2. Step 2: Convert to fraction form
    911,021.55/1,366,392.18 = 303,820.53/x
  3. Step 3: Cross multiply
    911,021.55x = 1,366,392.18 × 303,820.53
  4. Step 4: Simplify right side
    911,021.55x = 415,137,996,315.46
  5. Step 5: Solve for x
    x = 415,137,996,315.46/911,021.55
  6. Step 6: Final answer
    x = 455,684.06

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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.