Home / 1,296,147.60-1,940,819.40-915,010.20

Finding the Fourth Proportional to 1,296,147.60, 1,940,819.40 and 915,010.20

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Solution

The fourth proportional to 1,296,147.60, 1,940,819.40 and 915,010.20 is: 1,370,113.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296,147.60 : 1,940,819.40 = 915,010.20 : x
  2. Step 2: Convert to fraction form
    1,296,147.60/1,940,819.40 = 915,010.20/x
  3. Step 3: Cross multiply
    1,296,147.60x = 1,940,819.40 × 915,010.20
  4. Step 4: Simplify right side
    1,296,147.60x = 1,775,869,547,357.88
  5. Step 5: Solve for x
    x = 1,775,869,547,357.88/1,296,147.60
  6. Step 6: Final answer
    x = 1,370,113.67

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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.