Home / 772,128.06-1,157,797.20-322,726.30

Finding the Fourth Proportional to 772,128.06, 1,157,797.20 and 322,726.30

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Solution

The fourth proportional to 772,128.06, 1,157,797.20 and 322,726.30 is: 483,924.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,128.06 : 1,157,797.20 = 322,726.30 : x
  2. Step 2: Convert to fraction form
    772,128.06/1,157,797.20 = 322,726.30/x
  3. Step 3: Cross multiply
    772,128.06x = 1,157,797.20 × 322,726.30
  4. Step 4: Simplify right side
    772,128.06x = 373,651,606,506.36
  5. Step 5: Solve for x
    x = 373,651,606,506.36/772,128.06
  6. Step 6: Final answer
    x = 483,924.40

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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.