Home / 1,560,112.80-2,339,996.40-438,295.20

Finding the Fourth Proportional to 1,560,112.80, 2,339,996.40 and 438,295.20

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Solution

The fourth proportional to 1,560,112.80, 2,339,996.40 and 438,295.20 is: 657,394.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,560,112.80 : 2,339,996.40 = 438,295.20 : x
  2. Step 2: Convert to fraction form
    1,560,112.80/2,339,996.40 = 438,295.20/x
  3. Step 3: Cross multiply
    1,560,112.80x = 2,339,996.40 × 438,295.20
  4. Step 4: Simplify right side
    1,560,112.80x = 1,025,609,190,137.28
  5. Step 5: Solve for x
    x = 1,025,609,190,137.28/1,560,112.80
  6. Step 6: Final answer
    x = 657,394.25

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1.5x scale

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.