Home / 1,119,052.50-1,678,578.78-320,336.88

Finding the Fourth Proportional to 1,119,052.50, 1,678,578.78 and 320,336.88

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Solution

The fourth proportional to 1,119,052.50, 1,678,578.78 and 320,336.88 is: 480,505.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,052.50 : 1,678,578.78 = 320,336.88 : x
  2. Step 2: Convert to fraction form
    1,119,052.50/1,678,578.78 = 320,336.88/x
  3. Step 3: Cross multiply
    1,119,052.50x = 1,678,578.78 × 320,336.88
  4. Step 4: Simplify right side
    1,119,052.50x = 537,710,689,219.41
  5. Step 5: Solve for x
    x = 537,710,689,219.41/1,119,052.50
  6. Step 6: Final answer
    x = 480,505.33

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Double scale
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Similar ratio
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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.