Home / 554,025.46-764,509.20-312,367.46

Finding the Fourth Proportional to 554,025.46, 764,509.20 and 312,367.46

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Solution

The fourth proportional to 554,025.46, 764,509.20 and 312,367.46 is: 431,041.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,025.46 : 764,509.20 = 312,367.46 : x
  2. Step 2: Convert to fraction form
    554,025.46/764,509.20 = 312,367.46/x
  3. Step 3: Cross multiply
    554,025.46x = 764,509.20 × 312,367.46
  4. Step 4: Simplify right side
    554,025.46x = 238,807,796,950.63
  5. Step 5: Solve for x
    x = 238,807,796,950.63/554,025.46
  6. Step 6: Final answer
    x = 431,041.20

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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.