Home / 678,742.77-1,016,564.12-324,005.91

Finding the Fourth Proportional to 678,742.77, 1,016,564.12 and 324,005.91

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Solution

The fourth proportional to 678,742.77, 1,016,564.12 and 324,005.91 is: 485,268.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,742.77 : 1,016,564.12 = 324,005.91 : x
  2. Step 2: Convert to fraction form
    678,742.77/1,016,564.12 = 324,005.91/x
  3. Step 3: Cross multiply
    678,742.77x = 1,016,564.12 × 324,005.91
  4. Step 4: Simplify right side
    678,742.77x = 329,372,776,881.11
  5. Step 5: Solve for x
    x = 329,372,776,881.11/678,742.77
  6. Step 6: Final answer
    x = 485,268.93

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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.