Home / 1,421,397.52-1,961,523.83-776,817.54

Finding the Fourth Proportional to 1,421,397.52, 1,961,523.83 and 776,817.54

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Solution

The fourth proportional to 1,421,397.52, 1,961,523.83 and 776,817.54 is: 1,072,005.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,397.52 : 1,961,523.83 = 776,817.54 : x
  2. Step 2: Convert to fraction form
    1,421,397.52/1,961,523.83 = 776,817.54/x
  3. Step 3: Cross multiply
    1,421,397.52x = 1,961,523.83 × 776,817.54
  4. Step 4: Simplify right side
    1,421,397.52x = 1,523,746,117,121.58
  5. Step 5: Solve for x
    x = 1,523,746,117,121.58/1,421,397.52
  6. Step 6: Final answer
    x = 1,072,005.61

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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.