Home / 1,263,186.78-1,894,702.41-421,668.06

Finding the Fourth Proportional to 1,263,186.78, 1,894,702.41 and 421,668.06

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Solution

The fourth proportional to 1,263,186.78, 1,894,702.41 and 421,668.06 is: 632,476.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,263,186.78 : 1,894,702.41 = 421,668.06 : x
  2. Step 2: Convert to fraction form
    1,263,186.78/1,894,702.41 = 421,668.06/x
  3. Step 3: Cross multiply
    1,263,186.78x = 1,894,702.41 × 421,668.06
  4. Step 4: Simplify right side
    1,263,186.78x = 798,935,489,502.03
  5. Step 5: Solve for x
    x = 798,935,489,502.03/1,263,186.78
  6. Step 6: Final answer
    x = 632,476.13

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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.