Home / 1,559,630.40-2,339,272.80-1,278,657.60

Finding the Fourth Proportional to 1,559,630.40, 2,339,272.80 and 1,278,657.60

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Solution

The fourth proportional to 1,559,630.40, 2,339,272.80 and 1,278,657.60 is: 1,917,844.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,559,630.40 : 2,339,272.80 = 1,278,657.60 : x
  2. Step 2: Convert to fraction form
    1,559,630.40/2,339,272.80 = 1,278,657.60/x
  3. Step 3: Cross multiply
    1,559,630.40x = 2,339,272.80 × 1,278,657.60
  4. Step 4: Simplify right side
    1,559,630.40x = 2,991,128,944,193.28
  5. Step 5: Solve for x
    x = 2,991,128,944,193.28/1,559,630.40
  6. Step 6: Final answer
    x = 1,917,844.73

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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.