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Finding the Fourth Proportional to 3,982,314.32, 5,973,460.08 and 990,498.32

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Solution

The fourth proportional to 3,982,314.32, 5,973,460.08 and 990,498.32 is: 1,485,744.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,982,314.32 : 5,973,460.08 = 990,498.32 : x
  2. Step 2: Convert to fraction form
    3,982,314.32/5,973,460.08 = 990,498.32/x
  3. Step 3: Cross multiply
    3,982,314.32x = 5,973,460.08 × 990,498.32
  4. Step 4: Simplify right side
    3,982,314.32x = 5,916,702,173,827.07
  5. Step 5: Solve for x
    x = 5,916,702,173,827.07/3,982,314.32
  6. Step 6: Final answer
    x = 1,485,744.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.