Home / 920,173.80-1,380,260.70-470,745.30

Finding the Fourth Proportional to 920,173.80, 1,380,260.70 and 470,745.30

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Solution

The fourth proportional to 920,173.80, 1,380,260.70 and 470,745.30 is: 706,117.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,173.80 : 1,380,260.70 = 470,745.30 : x
  2. Step 2: Convert to fraction form
    920,173.80/1,380,260.70 = 470,745.30/x
  3. Step 3: Cross multiply
    920,173.80x = 1,380,260.70 × 470,745.30
  4. Step 4: Simplify right side
    920,173.80x = 649,751,237,299.71
  5. Step 5: Solve for x
    x = 649,751,237,299.71/920,173.80
  6. Step 6: Final answer
    x = 706,117.95

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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.