Home / 1,427,119.63-1,970,458.32-918,707.74

Finding the Fourth Proportional to 1,427,119.63, 1,970,458.32 and 918,707.74

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Solution

The fourth proportional to 1,427,119.63, 1,970,458.32 and 918,707.74 is: 1,268,481.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427,119.63 : 1,970,458.32 = 918,707.74 : x
  2. Step 2: Convert to fraction form
    1,427,119.63/1,970,458.32 = 918,707.74/x
  3. Step 3: Cross multiply
    1,427,119.63x = 1,970,458.32 × 918,707.74
  4. Step 4: Simplify right side
    1,427,119.63x = 1,810,275,309,931.40
  5. Step 5: Solve for x
    x = 1,810,275,309,931.40/1,427,119.63
  6. Step 6: Final answer
    x = 1,268,481.82

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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.