Home / 1,112,743.40-1,668,847.80-314,099.60

Finding the Fourth Proportional to 1,112,743.40, 1,668,847.80 and 314,099.60

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Solution

The fourth proportional to 1,112,743.40, 1,668,847.80 and 314,099.60 is: 471,073.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112,743.40 : 1,668,847.80 = 314,099.60 : x
  2. Step 2: Convert to fraction form
    1,112,743.40/1,668,847.80 = 314,099.60/x
  3. Step 3: Cross multiply
    1,112,743.40x = 1,668,847.80 × 314,099.60
  4. Step 4: Simplify right side
    1,112,743.40x = 524,184,426,440.88
  5. Step 5: Solve for x
    x = 524,184,426,440.88/1,112,743.40
  6. Step 6: Final answer
    x = 471,073.95

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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.