Home / 788,455.20-1,182,034.80-339,520.80

Finding the Fourth Proportional to 788,455.20, 1,182,034.80 and 339,520.80

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Solution

The fourth proportional to 788,455.20, 1,182,034.80 and 339,520.80 is: 509,002.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,455.20 : 1,182,034.80 = 339,520.80 : x
  2. Step 2: Convert to fraction form
    788,455.20/1,182,034.80 = 339,520.80/x
  3. Step 3: Cross multiply
    788,455.20x = 1,182,034.80 × 339,520.80
  4. Step 4: Simplify right side
    788,455.20x = 401,325,400,923.84
  5. Step 5: Solve for x
    x = 401,325,400,923.84/788,455.20
  6. Step 6: Final answer
    x = 509,002.16

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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.