Home / 1,421,453.60-1,961,601.30-776,873.64

Finding the Fourth Proportional to 1,421,453.60, 1,961,601.30 and 776,873.64

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Solution

The fourth proportional to 1,421,453.60, 1,961,601.30 and 776,873.64 is: 1,072,083.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,453.60 : 1,961,601.30 = 776,873.64 : x
  2. Step 2: Convert to fraction form
    1,421,453.60/1,961,601.30 = 776,873.64/x
  3. Step 3: Cross multiply
    1,421,453.60x = 1,961,601.30 × 776,873.64
  4. Step 4: Simplify right side
    1,421,453.60x = 1,523,916,342,159.73
  5. Step 5: Solve for x
    x = 1,523,916,342,159.73/1,421,453.60
  6. Step 6: Final answer
    x = 1,072,083.07

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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.