Home / 1,291,886.87-1,936,527.62-812,457.29

Finding the Fourth Proportional to 1,291,886.87, 1,936,527.62 and 812,457.29

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Solution

The fourth proportional to 1,291,886.87, 1,936,527.62 and 812,457.29 is: 1,217,866.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,886.87 : 1,936,527.62 = 812,457.29 : x
  2. Step 2: Convert to fraction form
    1,291,886.87/1,936,527.62 = 812,457.29/x
  3. Step 3: Cross multiply
    1,291,886.87x = 1,936,527.62 × 812,457.29
  4. Step 4: Simplify right side
    1,291,886.87x = 1,573,345,968,410.43
  5. Step 5: Solve for x
    x = 1,573,345,968,410.43/1,291,886.87
  6. Step 6: Final answer
    x = 1,217,866.68

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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.