Home / 1,245,623.79-1,718,602.56-810,681.44

Finding the Fourth Proportional to 1,245,623.79, 1,718,602.56 and 810,681.44

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Solution

The fourth proportional to 1,245,623.79, 1,718,602.56 and 810,681.44 is: 1,118,507.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,623.79 : 1,718,602.56 = 810,681.44 : x
  2. Step 2: Convert to fraction form
    1,245,623.79/1,718,602.56 = 810,681.44/x
  3. Step 3: Cross multiply
    1,245,623.79x = 1,718,602.56 × 810,681.44
  4. Step 4: Simplify right side
    1,245,623.79x = 1,393,239,189,535.47
  5. Step 5: Solve for x
    x = 1,393,239,189,535.47/1,245,623.79
  6. Step 6: Final answer
    x = 1,118,507.21

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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.