Home / 1,220,502.05-1,830,749.42-309,682.76

Finding the Fourth Proportional to 1,220,502.05, 1,830,749.42 and 309,682.76

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Solution

The fourth proportional to 1,220,502.05, 1,830,749.42 and 309,682.76 is: 464,523.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,502.05 : 1,830,749.42 = 309,682.76 : x
  2. Step 2: Convert to fraction form
    1,220,502.05/1,830,749.42 = 309,682.76/x
  3. Step 3: Cross multiply
    1,220,502.05x = 1,830,749.42 × 309,682.76
  4. Step 4: Simplify right side
    1,220,502.05x = 566,951,533,254.00
  5. Step 5: Solve for x
    x = 566,951,533,254.00/1,220,502.05
  6. Step 6: Final answer
    x = 464,523.21

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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.