Home / 1,178,361.09-1,626,139.58-669,063.47

Finding the Fourth Proportional to 1,178,361.09, 1,626,139.58 and 669,063.47

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Solution

The fourth proportional to 1,178,361.09, 1,626,139.58 and 669,063.47 is: 923,308.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178,361.09 : 1,626,139.58 = 669,063.47 : x
  2. Step 2: Convert to fraction form
    1,178,361.09/1,626,139.58 = 669,063.47/x
  3. Step 3: Cross multiply
    1,178,361.09x = 1,626,139.58 × 669,063.47
  4. Step 4: Simplify right side
    1,178,361.09x = 1,087,990,578,623.13
  5. Step 5: Solve for x
    x = 1,087,990,578,623.13/1,178,361.09
  6. Step 6: Final answer
    x = 923,308.30

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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.