Home / 770,832.80-1,154,780.40-415,728.80

Finding the Fourth Proportional to 770,832.80, 1,154,780.40 and 415,728.80

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Solution

The fourth proportional to 770,832.80, 1,154,780.40 and 415,728.80 is: 622,801.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,832.80 : 1,154,780.40 = 415,728.80 : x
  2. Step 2: Convert to fraction form
    770,832.80/1,154,780.40 = 415,728.80/x
  3. Step 3: Cross multiply
    770,832.80x = 1,154,780.40 × 415,728.80
  4. Step 4: Simplify right side
    770,832.80x = 480,075,469,955.52
  5. Step 5: Solve for x
    x = 480,075,469,955.52/770,832.80
  6. Step 6: Final answer
    x = 622,801.04

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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.