Home / 764,384.32-1,146,714.39-314,859.84

Finding the Fourth Proportional to 764,384.32, 1,146,714.39 and 314,859.84

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Solution

The fourth proportional to 764,384.32, 1,146,714.39 and 314,859.84 is: 472,346.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,384.32 : 1,146,714.39 = 314,859.84 : x
  2. Step 2: Convert to fraction form
    764,384.32/1,146,714.39 = 314,859.84/x
  3. Step 3: Cross multiply
    764,384.32x = 1,146,714.39 × 314,859.84
  4. Step 4: Simplify right side
    764,384.32x = 361,054,302,053.23
  5. Step 5: Solve for x
    x = 361,054,302,053.23/764,384.32
  6. Step 6: Final answer
    x = 472,346.56

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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.