Home / 1,112,512.20-1,668,768.30-1,100,702.40

Finding the Fourth Proportional to 1,112,512.20, 1,668,768.30 and 1,100,702.40

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Solution

The fourth proportional to 1,112,512.20, 1,668,768.30 and 1,100,702.40 is: 1,651,053.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112,512.20 : 1,668,768.30 = 1,100,702.40 : x
  2. Step 2: Convert to fraction form
    1,112,512.20/1,668,768.30 = 1,100,702.40/x
  3. Step 3: Cross multiply
    1,112,512.20x = 1,668,768.30 × 1,100,702.40
  4. Step 4: Simplify right side
    1,112,512.20x = 1,836,817,272,853.92
  5. Step 5: Solve for x
    x = 1,836,817,272,853.92/1,112,512.20
  6. Step 6: Final answer
    x = 1,651,053.60

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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.