Home / 1,780,065.60-2,668,917.60-981,729.60

Finding the Fourth Proportional to 1,780,065.60, 2,668,917.60 and 981,729.60

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Solution

The fourth proportional to 1,780,065.60, 2,668,917.60 and 981,729.60 is: 1,471,943.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,780,065.60 : 2,668,917.60 = 981,729.60 : x
  2. Step 2: Convert to fraction form
    1,780,065.60/2,668,917.60 = 981,729.60/x
  3. Step 3: Cross multiply
    1,780,065.60x = 2,668,917.60 × 981,729.60
  4. Step 4: Simplify right side
    1,780,065.60x = 2,620,155,407,880.96
  5. Step 5: Solve for x
    x = 2,620,155,407,880.96/1,780,065.60
  6. Step 6: Final answer
    x = 1,471,943.17

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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.