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Finding the Fourth Proportional to 864,741.84, 1,297,116.60 and 265,698

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Solution

The fourth proportional to 864,741.84, 1,297,116.60 and 265,698 is: 398,548.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,741.84 : 1,297,116.60 = 265,698 : x
  2. Step 2: Convert to fraction form
    864,741.84/1,297,116.60 = 265,698/x
  3. Step 3: Cross multiply
    864,741.84x = 1,297,116.60 × 265,698
  4. Step 4: Simplify right side
    864,741.84x = 344,641,286,386.80
  5. Step 5: Solve for x
    x = 344,641,286,386.80/864,741.84
  6. Step 6: Final answer
    x = 398,548.18

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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.