Home / 1,212,939.40-1,819,409.10-976,743.40

Finding the Fourth Proportional to 1,212,939.40, 1,819,409.10 and 976,743.40

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Solution

The fourth proportional to 1,212,939.40, 1,819,409.10 and 976,743.40 is: 1,465,115.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,939.40 : 1,819,409.10 = 976,743.40 : x
  2. Step 2: Convert to fraction form
    1,212,939.40/1,819,409.10 = 976,743.40/x
  3. Step 3: Cross multiply
    1,212,939.40x = 1,819,409.10 × 976,743.40
  4. Step 4: Simplify right side
    1,212,939.40x = 1,777,095,830,324.94
  5. Step 5: Solve for x
    x = 1,777,095,830,324.94/1,212,939.40
  6. Step 6: Final answer
    x = 1,465,115.10

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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.