Home / 764,048.64-1,146,302.14-308,405.42

Finding the Fourth Proportional to 764,048.64, 1,146,302.14 and 308,405.42

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Solution

The fourth proportional to 764,048.64, 1,146,302.14 and 308,405.42 is: 462,700.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,048.64 : 1,146,302.14 = 308,405.42 : x
  2. Step 2: Convert to fraction form
    764,048.64/1,146,302.14 = 308,405.42/x
  3. Step 3: Cross multiply
    764,048.64x = 1,146,302.14 × 308,405.42
  4. Step 4: Simplify right side
    764,048.64x = 353,525,792,933.60
  5. Step 5: Solve for x
    x = 353,525,792,933.60/764,048.64
  6. Step 6: Final answer
    x = 462,700.64

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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.