Home / 823,968-1,136,980.14-479,879.10

Finding the Fourth Proportional to 823,968, 1,136,980.14 and 479,879.10

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Solution

The fourth proportional to 823,968, 1,136,980.14 and 479,879.10 is: 662,177.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,968 : 1,136,980.14 = 479,879.10 : x
  2. Step 2: Convert to fraction form
    823,968/1,136,980.14 = 479,879.10/x
  3. Step 3: Cross multiply
    823,968x = 1,136,980.14 × 479,879.10
  4. Step 4: Simplify right side
    823,968x = 545,613,006,301.07
  5. Step 5: Solve for x
    x = 545,613,006,301.07/823,968
  6. Step 6: Final answer
    x = 662,177.42

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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.