Home / 772,125.80-1,158,131.10-322,730.60

Finding the Fourth Proportional to 772,125.80, 1,158,131.10 and 322,730.60

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Solution

The fourth proportional to 772,125.80, 1,158,131.10 and 322,730.60 is: 484,071.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,125.80 : 1,158,131.10 = 322,730.60 : x
  2. Step 2: Convert to fraction form
    772,125.80/1,158,131.10 = 322,730.60/x
  3. Step 3: Cross multiply
    772,125.80x = 1,158,131.10 × 322,730.60
  4. Step 4: Simplify right side
    772,125.80x = 373,764,344,781.66
  5. Step 5: Solve for x
    x = 373,764,344,781.66/772,125.80
  6. Step 6: Final answer
    x = 484,071.82

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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.