Home / 1,119,072.40-1,678,608.60-371,021.20

Finding the Fourth Proportional to 1,119,072.40, 1,678,608.60 and 371,021.20

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Solution

The fourth proportional to 1,119,072.40, 1,678,608.60 and 371,021.20 is: 556,531.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,072.40 : 1,678,608.60 = 371,021.20 : x
  2. Step 2: Convert to fraction form
    1,119,072.40/1,678,608.60 = 371,021.20/x
  3. Step 3: Cross multiply
    1,119,072.40x = 1,678,608.60 × 371,021.20
  4. Step 4: Simplify right side
    1,119,072.40x = 622,799,377,102.32
  5. Step 5: Solve for x
    x = 622,799,377,102.32/1,119,072.40
  6. Step 6: Final answer
    x = 556,531.80

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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.