Home / 1,281,810.70-1,921,513.20-483,628.60

Finding the Fourth Proportional to 1,281,810.70, 1,921,513.20 and 483,628.60

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Solution

The fourth proportional to 1,281,810.70, 1,921,513.20 and 483,628.60 is: 724,989.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,281,810.70 : 1,921,513.20 = 483,628.60 : x
  2. Step 2: Convert to fraction form
    1,281,810.70/1,921,513.20 = 483,628.60/x
  3. Step 3: Cross multiply
    1,281,810.70x = 1,921,513.20 × 483,628.60
  4. Step 4: Simplify right side
    1,281,810.70x = 929,298,738,797.52
  5. Step 5: Solve for x
    x = 929,298,738,797.52/1,281,810.70
  6. Step 6: Final answer
    x = 724,989.06

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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.