Home / 1,247,817.23-1,721,987.78-674,857.40

Finding the Fourth Proportional to 1,247,817.23, 1,721,987.78 and 674,857.40

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Solution

The fourth proportional to 1,247,817.23, 1,721,987.78 and 674,857.40 is: 931,303.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,817.23 : 1,721,987.78 = 674,857.40 : x
  2. Step 2: Convert to fraction form
    1,247,817.23/1,721,987.78 = 674,857.40/x
  3. Step 3: Cross multiply
    1,247,817.23x = 1,721,987.78 × 674,857.40
  4. Step 4: Simplify right side
    1,247,817.23x = 1,162,096,192,668.28
  5. Step 5: Solve for x
    x = 1,162,096,192,668.28/1,247,817.23
  6. Step 6: Final answer
    x = 931,303.21

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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.