Home / 1,427,731.08-1,970,268.90-783,152.76

Finding the Fourth Proportional to 1,427,731.08, 1,970,268.90 and 783,152.76

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Solution

The fourth proportional to 1,427,731.08, 1,970,268.90 and 783,152.76 is: 1,080,750.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427,731.08 : 1,970,268.90 = 783,152.76 : x
  2. Step 2: Convert to fraction form
    1,427,731.08/1,970,268.90 = 783,152.76/x
  3. Step 3: Cross multiply
    1,427,731.08x = 1,970,268.90 × 783,152.76
  4. Step 4: Simplify right side
    1,427,731.08x = 1,543,021,526,977.16
  5. Step 5: Solve for x
    x = 1,543,021,526,977.16/1,427,731.08
  6. Step 6: Final answer
    x = 1,080,750.81

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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.