Home / 1,119,034.82-1,678,511.18-320,315.16

Finding the Fourth Proportional to 1,119,034.82, 1,678,511.18 and 320,315.16

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Solution

The fourth proportional to 1,119,034.82, 1,678,511.18 and 320,315.16 is: 480,460.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,034.82 : 1,678,511.18 = 320,315.16 : x
  2. Step 2: Convert to fraction form
    1,119,034.82/1,678,511.18 = 320,315.16/x
  3. Step 3: Cross multiply
    1,119,034.82x = 1,678,511.18 × 320,315.16
  4. Step 4: Simplify right side
    1,119,034.82x = 537,652,577,183.49
  5. Step 5: Solve for x
    x = 537,652,577,183.49/1,119,034.82
  6. Step 6: Final answer
    x = 480,460.99

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Double scale
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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.