Home / 1,072,012.80-1,608,019.20-440,716.80

Finding the Fourth Proportional to 1,072,012.80, 1,608,019.20 and 440,716.80

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Solution

The fourth proportional to 1,072,012.80, 1,608,019.20 and 440,716.80 is: 661,075.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,072,012.80 : 1,608,019.20 = 440,716.80 : x
  2. Step 2: Convert to fraction form
    1,072,012.80/1,608,019.20 = 440,716.80/x
  3. Step 3: Cross multiply
    1,072,012.80x = 1,608,019.20 × 440,716.80
  4. Step 4: Simplify right side
    1,072,012.80x = 708,681,076,162.56
  5. Step 5: Solve for x
    x = 708,681,076,162.56/1,072,012.80
  6. Step 6: Final answer
    x = 661,075.20

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Double scale
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Similar ratio
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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.