Home / 2,485,886.32-3,430,489.26-1,398,157.47

Finding the Fourth Proportional to 2,485,886.32, 3,430,489.26 and 1,398,157.47

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Solution

The fourth proportional to 2,485,886.32, 3,430,489.26 and 1,398,157.47 is: 1,929,438.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,485,886.32 : 3,430,489.26 = 1,398,157.47 : x
  2. Step 2: Convert to fraction form
    2,485,886.32/3,430,489.26 = 1,398,157.47/x
  3. Step 3: Cross multiply
    2,485,886.32x = 3,430,489.26 × 1,398,157.47
  4. Step 4: Simplify right side
    2,485,886.32x = 4,796,364,189,866.86
  5. Step 5: Solve for x
    x = 4,796,364,189,866.86/2,485,886.32
  6. Step 6: Final answer
    x = 1,929,438.26

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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.