Home / 1,314,125.55-1,970,340.84-515,487.83

Finding the Fourth Proportional to 1,314,125.55, 1,970,340.84 and 515,487.83

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Solution

The fourth proportional to 1,314,125.55, 1,970,340.84 and 515,487.83 is: 772,899.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,314,125.55 : 1,970,340.84 = 515,487.83 : x
  2. Step 2: Convert to fraction form
    1,314,125.55/1,970,340.84 = 515,487.83/x
  3. Step 3: Cross multiply
    1,314,125.55x = 1,970,340.84 × 515,487.83
  4. Step 4: Simplify right side
    1,314,125.55x = 1,015,686,714,120.27
  5. Step 5: Solve for x
    x = 1,015,686,714,120.27/1,314,125.55
  6. Step 6: Final answer
    x = 772,899.30

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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.