Home / 1,311,254.60-1,966,881.90-512,562.20

Finding the Fourth Proportional to 1,311,254.60, 1,966,881.90 and 512,562.20

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Solution

The fourth proportional to 1,311,254.60, 1,966,881.90 and 512,562.20 is: 768,843.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,254.60 : 1,966,881.90 = 512,562.20 : x
  2. Step 2: Convert to fraction form
    1,311,254.60/1,966,881.90 = 512,562.20/x
  3. Step 3: Cross multiply
    1,311,254.60x = 1,966,881.90 × 512,562.20
  4. Step 4: Simplify right side
    1,311,254.60x = 1,008,149,313,804.18
  5. Step 5: Solve for x
    x = 1,008,149,313,804.18/1,311,254.60
  6. Step 6: Final answer
    x = 768,843.30

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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.