Home / 1,421,558.69-1,961,722.05-776,983.50

Finding the Fourth Proportional to 1,421,558.69, 1,961,722.05 and 776,983.50

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Solution

The fourth proportional to 1,421,558.69, 1,961,722.05 and 776,983.50 is: 1,072,221.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,558.69 : 1,961,722.05 = 776,983.50 : x
  2. Step 2: Convert to fraction form
    1,421,558.69/1,961,722.05 = 776,983.50/x
  3. Step 3: Cross multiply
    1,421,558.69x = 1,961,722.05 × 776,983.50
  4. Step 4: Simplify right side
    1,421,558.69x = 1,524,225,664,436.18
  5. Step 5: Solve for x
    x = 1,524,225,664,436.18/1,421,558.69
  6. Step 6: Final answer
    x = 1,072,221.41

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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.