Home / 1,283,289.32-1,923,851.28-808,928.84

Finding the Fourth Proportional to 1,283,289.32, 1,923,851.28 and 808,928.84

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Solution

The fourth proportional to 1,283,289.32, 1,923,851.28 and 808,928.84 is: 1,212,710.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,283,289.32 : 1,923,851.28 = 808,928.84 : x
  2. Step 2: Convert to fraction form
    1,283,289.32/1,923,851.28 = 808,928.84/x
  3. Step 3: Cross multiply
    1,283,289.32x = 1,923,851.28 × 808,928.84
  4. Step 4: Simplify right side
    1,283,289.32x = 1,556,258,784,262.92
  5. Step 5: Solve for x
    x = 1,556,258,784,262.92/1,283,289.32
  6. Step 6: Final answer
    x = 1,212,710.77

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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.