Home / 793,420.80-1,190,131.20-478,492.80

Finding the Fourth Proportional to 793,420.80, 1,190,131.20 and 478,492.80

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Solution

The fourth proportional to 793,420.80, 1,190,131.20 and 478,492.80 is: 717,739.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    793,420.80 : 1,190,131.20 = 478,492.80 : x
  2. Step 2: Convert to fraction form
    793,420.80/1,190,131.20 = 478,492.80/x
  3. Step 3: Cross multiply
    793,420.80x = 1,190,131.20 × 478,492.80
  4. Step 4: Simplify right side
    793,420.80x = 569,469,210,255.36
  5. Step 5: Solve for x
    x = 569,469,210,255.36/793,420.80
  6. Step 6: Final answer
    x = 717,739.20

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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.