Home / 788,575.20-1,182,214.80-339,640.80

Finding the Fourth Proportional to 788,575.20, 1,182,214.80 and 339,640.80

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Solution

The fourth proportional to 788,575.20, 1,182,214.80 and 339,640.80 is: 509,182.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,575.20 : 1,182,214.80 = 339,640.80 : x
  2. Step 2: Convert to fraction form
    788,575.20/1,182,214.80 = 339,640.80/x
  3. Step 3: Cross multiply
    788,575.20x = 1,182,214.80 × 339,640.80
  4. Step 4: Simplify right side
    788,575.20x = 401,528,380,443.84
  5. Step 5: Solve for x
    x = 401,528,380,443.84/788,575.20
  6. Step 6: Final answer
    x = 509,182.11

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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.