Home / 1,195,979.78-1,649,111.23-977,510.36

Finding the Fourth Proportional to 1,195,979.78, 1,649,111.23 and 977,510.36

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Solution

The fourth proportional to 1,195,979.78, 1,649,111.23 and 977,510.36 is: 1,347,868.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,195,979.78 : 1,649,111.23 = 977,510.36 : x
  2. Step 2: Convert to fraction form
    1,195,979.78/1,649,111.23 = 977,510.36/x
  3. Step 3: Cross multiply
    1,195,979.78x = 1,649,111.23 × 977,510.36
  4. Step 4: Simplify right side
    1,195,979.78x = 1,612,023,317,462.01
  5. Step 5: Solve for x
    x = 1,612,023,317,462.01/1,195,979.78
  6. Step 6: Final answer
    x = 1,347,868.37

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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.