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Finding the Fourth Proportional to 393,303.60, 589,080.60 and 323,319.60

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Solution

The fourth proportional to 393,303.60, 589,080.60 and 323,319.60 is: 484,260.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,303.60 : 589,080.60 = 323,319.60 : x
  2. Step 2: Convert to fraction form
    393,303.60/589,080.60 = 323,319.60/x
  3. Step 3: Cross multiply
    393,303.60x = 589,080.60 × 323,319.60
  4. Step 4: Simplify right side
    393,303.60x = 190,461,303,959.76
  5. Step 5: Solve for x
    x = 190,461,303,959.76/393,303.60
  6. Step 6: Final answer
    x = 484,260.26

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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.