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Finding the Fourth Proportional to 3,562,638.64, 5,343,968.76 and 866,964.32

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Solution

The fourth proportional to 3,562,638.64, 5,343,968.76 and 866,964.32 is: 1,300,449.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,562,638.64 : 5,343,968.76 = 866,964.32 : x
  2. Step 2: Convert to fraction form
    3,562,638.64/5,343,968.76 = 866,964.32/x
  3. Step 3: Cross multiply
    3,562,638.64x = 5,343,968.76 × 866,964.32
  4. Step 4: Simplify right side
    3,562,638.64x = 4,633,030,242,114.64
  5. Step 5: Solve for x
    x = 4,633,030,242,114.64/3,562,638.64
  6. Step 6: Final answer
    x = 1,300,449.11

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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.