Home / 1,205,945.20-1,808,917.80-307,385.20

Finding the Fourth Proportional to 1,205,945.20, 1,808,917.80 and 307,385.20

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Solution

The fourth proportional to 1,205,945.20, 1,808,917.80 and 307,385.20 is: 461,077.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,945.20 : 1,808,917.80 = 307,385.20 : x
  2. Step 2: Convert to fraction form
    1,205,945.20/1,808,917.80 = 307,385.20/x
  3. Step 3: Cross multiply
    1,205,945.20x = 1,808,917.80 × 307,385.20
  4. Step 4: Simplify right side
    1,205,945.20x = 556,034,559,736.56
  5. Step 5: Solve for x
    x = 556,034,559,736.56/1,205,945.20
  6. Step 6: Final answer
    x = 461,077.80

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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.