Home / 1,215,125.20-1,676,923.72-698,879.24

Finding the Fourth Proportional to 1,215,125.20, 1,676,923.72 and 698,879.24

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Solution

The fourth proportional to 1,215,125.20, 1,676,923.72 and 698,879.24 is: 964,482.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,125.20 : 1,676,923.72 = 698,879.24 : x
  2. Step 2: Convert to fraction form
    1,215,125.20/1,676,923.72 = 698,879.24/x
  3. Step 3: Cross multiply
    1,215,125.20x = 1,676,923.72 × 698,879.24
  4. Step 4: Simplify right side
    1,215,125.20x = 1,171,967,174,971.57
  5. Step 5: Solve for x
    x = 1,171,967,174,971.57/1,215,125.20
  6. Step 6: Final answer
    x = 964,482.65

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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.