Home / 1,421,022.54-1,961,024.88-776,442.72

Finding the Fourth Proportional to 1,421,022.54, 1,961,024.88 and 776,442.72

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Solution

The fourth proportional to 1,421,022.54, 1,961,024.88 and 776,442.72 is: 1,071,498.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,022.54 : 1,961,024.88 = 776,442.72 : x
  2. Step 2: Convert to fraction form
    1,421,022.54/1,961,024.88 = 776,442.72/x
  3. Step 3: Cross multiply
    1,421,022.54x = 1,961,024.88 × 776,442.72
  4. Step 4: Simplify right side
    1,421,022.54x = 1,522,623,491,814.87
  5. Step 5: Solve for x
    x = 1,522,623,491,814.87/1,421,022.54
  6. Step 6: Final answer
    x = 1,071,498.48

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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.