Home / 2,158,401.84-2,978,618.64-1,191,532.64

Finding the Fourth Proportional to 2,158,401.84, 2,978,618.64 and 1,191,532.64

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Solution

The fourth proportional to 2,158,401.84, 2,978,618.64 and 1,191,532.64 is: 1,644,328.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,158,401.84 : 2,978,618.64 = 1,191,532.64 : x
  2. Step 2: Convert to fraction form
    2,158,401.84/2,978,618.64 = 1,191,532.64/x
  3. Step 3: Cross multiply
    2,158,401.84x = 2,978,618.64 × 1,191,532.64
  4. Step 4: Simplify right side
    2,158,401.84x = 3,549,121,331,672.41
  5. Step 5: Solve for x
    x = 3,549,121,331,672.41/2,158,401.84
  6. Step 6: Final answer
    x = 1,644,328.35

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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.