Home / 1,178,340.78-1,626,121.23-669,054.06

Finding the Fourth Proportional to 1,178,340.78, 1,626,121.23 and 669,054.06

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Solution

The fourth proportional to 1,178,340.78, 1,626,121.23 and 669,054.06 is: 923,300.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178,340.78 : 1,626,121.23 = 669,054.06 : x
  2. Step 2: Convert to fraction form
    1,178,340.78/1,626,121.23 = 669,054.06/x
  3. Step 3: Cross multiply
    1,178,340.78x = 1,626,121.23 × 669,054.06
  4. Step 4: Simplify right side
    1,178,340.78x = 1,087,963,010,983.69
  5. Step 5: Solve for x
    x = 1,087,963,010,983.69/1,178,340.78
  6. Step 6: Final answer
    x = 923,300.82

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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.