Home / 779,635.40-1,169,453.10-380,532.20

Finding the Fourth Proportional to 779,635.40, 1,169,453.10 and 380,532.20

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Solution

The fourth proportional to 779,635.40, 1,169,453.10 and 380,532.20 is: 570,798.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,635.40 : 1,169,453.10 = 380,532.20 : x
  2. Step 2: Convert to fraction form
    779,635.40/1,169,453.10 = 380,532.20/x
  3. Step 3: Cross multiply
    779,635.40x = 1,169,453.10 × 380,532.20
  4. Step 4: Simplify right side
    779,635.40x = 445,014,560,939.82
  5. Step 5: Solve for x
    x = 445,014,560,939.82/779,635.40
  6. Step 6: Final answer
    x = 570,798.30

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Half scale
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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.