Home / 1,120,455.10-1,680,186.93-321,551.29

Finding the Fourth Proportional to 1,120,455.10, 1,680,186.93 and 321,551.29

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Solution

The fourth proportional to 1,120,455.10, 1,680,186.93 and 321,551.29 is: 482,184.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,455.10 : 1,680,186.93 = 321,551.29 : x
  2. Step 2: Convert to fraction form
    1,120,455.10/1,680,186.93 = 321,551.29/x
  3. Step 3: Cross multiply
    1,120,455.10x = 1,680,186.93 × 321,551.29
  4. Step 4: Simplify right side
    1,120,455.10x = 540,266,274,782.64
  5. Step 5: Solve for x
    x = 540,266,274,782.64/1,120,455.10
  6. Step 6: Final answer
    x = 482,184.67

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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.