Home / 740,321.70-1,110,939.38-290,963.67

Finding the Fourth Proportional to 740,321.70, 1,110,939.38 and 290,963.67

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Solution

The fourth proportional to 740,321.70, 1,110,939.38 and 290,963.67 is: 436,625.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,321.70 : 1,110,939.38 = 290,963.67 : x
  2. Step 2: Convert to fraction form
    740,321.70/1,110,939.38 = 290,963.67/x
  3. Step 3: Cross multiply
    740,321.70x = 1,110,939.38 × 290,963.67
  4. Step 4: Simplify right side
    740,321.70x = 323,242,999,152.33
  5. Step 5: Solve for x
    x = 323,242,999,152.33/740,321.70
  6. Step 6: Final answer
    x = 436,625.05

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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.