Home / 789,820.80-1,184,731.20-291,379.20

Finding the Fourth Proportional to 789,820.80, 1,184,731.20 and 291,379.20

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Solution

The fourth proportional to 789,820.80, 1,184,731.20 and 291,379.20 is: 437,068.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,820.80 : 1,184,731.20 = 291,379.20 : x
  2. Step 2: Convert to fraction form
    789,820.80/1,184,731.20 = 291,379.20/x
  3. Step 3: Cross multiply
    789,820.80x = 1,184,731.20 × 291,379.20
  4. Step 4: Simplify right side
    789,820.80x = 345,206,029,271.04
  5. Step 5: Solve for x
    x = 345,206,029,271.04/789,820.80
  6. Step 6: Final answer
    x = 437,068.80

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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.