Home / 772,711.12-1,066,369.04-450,369.28

Finding the Fourth Proportional to 772,711.12, 1,066,369.04 and 450,369.28

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Solution

The fourth proportional to 772,711.12, 1,066,369.04 and 450,369.28 is: 621,525.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,711.12 : 1,066,369.04 = 450,369.28 : x
  2. Step 2: Convert to fraction form
    772,711.12/1,066,369.04 = 450,369.28/x
  3. Step 3: Cross multiply
    772,711.12x = 1,066,369.04 × 450,369.28
  4. Step 4: Simplify right side
    772,711.12x = 480,259,856,759.09
  5. Step 5: Solve for x
    x = 480,259,856,759.09/772,711.12
  6. Step 6: Final answer
    x = 621,525.75

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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.