Home / 1,620,127.70-2,430,182.78-660,579.59

Finding the Fourth Proportional to 1,620,127.70, 2,430,182.78 and 660,579.59

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Solution

The fourth proportional to 1,620,127.70, 2,430,182.78 and 660,579.59 is: 990,865.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,620,127.70 : 2,430,182.78 = 660,579.59 : x
  2. Step 2: Convert to fraction form
    1,620,127.70/2,430,182.78 = 660,579.59/x
  3. Step 3: Cross multiply
    1,620,127.70x = 2,430,182.78 × 660,579.59
  4. Step 4: Simplify right side
    1,620,127.70x = 1,605,329,148,127.63
  5. Step 5: Solve for x
    x = 1,605,329,148,127.63/1,620,127.70
  6. Step 6: Final answer
    x = 990,865.81

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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.