Home / 1,147,026.40-1,721,851.80-673,978.30

Finding the Fourth Proportional to 1,147,026.40, 1,721,851.80 and 673,978.30

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Solution

The fourth proportional to 1,147,026.40, 1,721,851.80 and 673,978.30 is: 1,011,738.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,147,026.40 : 1,721,851.80 = 673,978.30 : x
  2. Step 2: Convert to fraction form
    1,147,026.40/1,721,851.80 = 673,978.30/x
  3. Step 3: Cross multiply
    1,147,026.40x = 1,721,851.80 × 673,978.30
  4. Step 4: Simplify right side
    1,147,026.40x = 1,160,490,749,015.94
  5. Step 5: Solve for x
    x = 1,160,490,749,015.94/1,147,026.40
  6. Step 6: Final answer
    x = 1,011,738.48

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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.