Home / 1,147,003-1,720,712.40-472,709.32

Finding the Fourth Proportional to 1,147,003, 1,720,712.40 and 472,709.32

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Solution

The fourth proportional to 1,147,003, 1,720,712.40 and 472,709.32 is: 709,149.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,147,003 : 1,720,712.40 = 472,709.32 : x
  2. Step 2: Convert to fraction form
    1,147,003/1,720,712.40 = 472,709.32/x
  3. Step 3: Cross multiply
    1,147,003x = 1,720,712.40 × 472,709.32
  4. Step 4: Simplify right side
    1,147,003x = 813,396,788,519.57
  5. Step 5: Solve for x
    x = 813,396,788,519.57/1,147,003
  6. Step 6: Final answer
    x = 709,149.66

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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.