Home / 742,205.31-1,112,447.34-342,005.37

Finding the Fourth Proportional to 742,205.31, 1,112,447.34 and 342,005.37

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Solution

The fourth proportional to 742,205.31, 1,112,447.34 and 342,005.37 is: 512,611.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,205.31 : 1,112,447.34 = 342,005.37 : x
  2. Step 2: Convert to fraction form
    742,205.31/1,112,447.34 = 342,005.37/x
  3. Step 3: Cross multiply
    742,205.31x = 1,112,447.34 × 342,005.37
  4. Step 4: Simplify right side
    742,205.31x = 380,462,964,122.22
  5. Step 5: Solve for x
    x = 380,462,964,122.22/742,205.31
  6. Step 6: Final answer
    x = 512,611.48

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1.5x scale

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.