Home / 678,548.32-1,016,272.08-323,811.40

Finding the Fourth Proportional to 678,548.32, 1,016,272.08 and 323,811.40

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Solution

The fourth proportional to 678,548.32, 1,016,272.08 and 323,811.40 is: 484,977.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,548.32 : 1,016,272.08 = 323,811.40 : x
  2. Step 2: Convert to fraction form
    678,548.32/1,016,272.08 = 323,811.40/x
  3. Step 3: Cross multiply
    678,548.32x = 1,016,272.08 × 323,811.40
  4. Step 4: Simplify right side
    678,548.32x = 329,080,485,005.71
  5. Step 5: Solve for x
    x = 329,080,485,005.71/678,548.32
  6. Step 6: Final answer
    x = 484,977.23

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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.