Home / 1,259,389.60-1,888,911.60-417,853.60

Finding the Fourth Proportional to 1,259,389.60, 1,888,911.60 and 417,853.60

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Solution

The fourth proportional to 1,259,389.60, 1,888,911.60 and 417,853.60 is: 626,723.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,389.60 : 1,888,911.60 = 417,853.60 : x
  2. Step 2: Convert to fraction form
    1,259,389.60/1,888,911.60 = 417,853.60/x
  3. Step 3: Cross multiply
    1,259,389.60x = 1,888,911.60 × 417,853.60
  4. Step 4: Simplify right side
    1,259,389.60x = 789,288,512,141.76
  5. Step 5: Solve for x
    x = 789,288,512,141.76/1,259,389.60
  6. Step 6: Final answer
    x = 626,723.07

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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.