Home / 1,278,041.81-1,764,284.75-1,102,915.35

Finding the Fourth Proportional to 1,278,041.81, 1,764,284.75 and 1,102,915.35

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Solution

The fourth proportional to 1,278,041.81, 1,764,284.75 and 1,102,915.35 is: 1,522,529.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,041.81 : 1,764,284.75 = 1,102,915.35 : x
  2. Step 2: Convert to fraction form
    1,278,041.81/1,764,284.75 = 1,102,915.35/x
  3. Step 3: Cross multiply
    1,278,041.81x = 1,764,284.75 × 1,102,915.35
  4. Step 4: Simplify right side
    1,278,041.81x = 1,945,856,735,303.20
  5. Step 5: Solve for x
    x = 1,945,856,735,303.20/1,278,041.81
  6. Step 6: Final answer
    x = 1,522,529.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.