Home / 1,515,643.25-2,091,587.87-836,579.93

Finding the Fourth Proportional to 1,515,643.25, 2,091,587.87 and 836,579.93

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Solution

The fourth proportional to 1,515,643.25, 2,091,587.87 and 836,579.93 is: 1,154,480.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,515,643.25 : 2,091,587.87 = 836,579.93 : x
  2. Step 2: Convert to fraction form
    1,515,643.25/2,091,587.87 = 836,579.93/x
  3. Step 3: Cross multiply
    1,515,643.25x = 2,091,587.87 × 836,579.93
  4. Step 4: Simplify right side
    1,515,643.25x = 1,749,780,433,873.45
  5. Step 5: Solve for x
    x = 1,749,780,433,873.45/1,515,643.25
  6. Step 6: Final answer
    x = 1,154,480.41

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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.