Home / 1,351,624.36-1,865,040.98-820,919.43

Finding the Fourth Proportional to 1,351,624.36, 1,865,040.98 and 820,919.43

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Solution

The fourth proportional to 1,351,624.36, 1,865,040.98 and 820,919.43 is: 1,132,746.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,351,624.36 : 1,865,040.98 = 820,919.43 : x
  2. Step 2: Convert to fraction form
    1,351,624.36/1,865,040.98 = 820,919.43/x
  3. Step 3: Cross multiply
    1,351,624.36x = 1,865,040.98 × 820,919.43
  4. Step 4: Simplify right side
    1,351,624.36x = 1,531,048,378,228.24
  5. Step 5: Solve for x
    x = 1,531,048,378,228.24/1,351,624.36
  6. Step 6: Final answer
    x = 1,132,746.96

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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.