Home / 1,213,172.78-1,674,166.86-669,312.95

Finding the Fourth Proportional to 1,213,172.78, 1,674,166.86 and 669,312.95

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Solution

The fourth proportional to 1,213,172.78, 1,674,166.86 and 669,312.95 is: 923,645.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,172.78 : 1,674,166.86 = 669,312.95 : x
  2. Step 2: Convert to fraction form
    1,213,172.78/1,674,166.86 = 669,312.95/x
  3. Step 3: Cross multiply
    1,213,172.78x = 1,674,166.86 × 669,312.95
  4. Step 4: Simplify right side
    1,213,172.78x = 1,120,541,551,488.00
  5. Step 5: Solve for x
    x = 1,120,541,551,488.00/1,213,172.78
  6. Step 6: Final answer
    x = 923,645.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.