Home / 770,064.12-1,062,261.87-447,738.60

Finding the Fourth Proportional to 770,064.12, 1,062,261.87 and 447,738.60

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Solution

The fourth proportional to 770,064.12, 1,062,261.87 and 447,738.60 is: 617,631.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,064.12 : 1,062,261.87 = 447,738.60 : x
  2. Step 2: Convert to fraction form
    770,064.12/1,062,261.87 = 447,738.60/x
  3. Step 3: Cross multiply
    770,064.12x = 1,062,261.87 × 447,738.60
  4. Step 4: Simplify right side
    770,064.12x = 475,615,642,507.18
  5. Step 5: Solve for x
    x = 475,615,642,507.18/770,064.12
  6. Step 6: Final answer
    x = 617,631.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.