Home / 1,287,515.44-1,775,537.04-771,186.88

Finding the Fourth Proportional to 1,287,515.44, 1,775,537.04 and 771,186.88

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Solution

The fourth proportional to 1,287,515.44, 1,775,537.04 and 771,186.88 is: 1,063,498.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,515.44 : 1,775,537.04 = 771,186.88 : x
  2. Step 2: Convert to fraction form
    1,287,515.44/1,775,537.04 = 771,186.88/x
  3. Step 3: Cross multiply
    1,287,515.44x = 1,775,537.04 × 771,186.88
  4. Step 4: Simplify right side
    1,287,515.44x = 1,369,270,870,202.04
  5. Step 5: Solve for x
    x = 1,369,270,870,202.04/1,287,515.44
  6. Step 6: Final answer
    x = 1,063,498.60

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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.