Home / 1,112,491.82-1,668,185.12-354,234.30

Finding the Fourth Proportional to 1,112,491.82, 1,668,185.12 and 354,234.30

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Solution

The fourth proportional to 1,112,491.82, 1,668,185.12 and 354,234.30 is: 531,175.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112,491.82 : 1,668,185.12 = 354,234.30 : x
  2. Step 2: Convert to fraction form
    1,112,491.82/1,668,185.12 = 354,234.30/x
  3. Step 3: Cross multiply
    1,112,491.82x = 1,668,185.12 × 354,234.30
  4. Step 4: Simplify right side
    1,112,491.82x = 590,928,386,482.45
  5. Step 5: Solve for x
    x = 590,928,386,482.45/1,112,491.82
  6. Step 6: Final answer
    x = 531,175.49

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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.