Home / 678,541.20-1,016,261.64-323,804.40

Finding the Fourth Proportional to 678,541.20, 1,016,261.64 and 323,804.40

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Solution

The fourth proportional to 678,541.20, 1,016,261.64 and 323,804.40 is: 484,966.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,541.20 : 1,016,261.64 = 323,804.40 : x
  2. Step 2: Convert to fraction form
    678,541.20/1,016,261.64 = 323,804.40/x
  3. Step 3: Cross multiply
    678,541.20x = 1,016,261.64 × 323,804.40
  4. Step 4: Simplify right side
    678,541.20x = 329,069,990,583.22
  5. Step 5: Solve for x
    x = 329,069,990,583.22/678,541.20
  6. Step 6: Final answer
    x = 484,966.85

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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.