Home / 678,547.45-1,016,270.83-323,810.58

Finding the Fourth Proportional to 678,547.45, 1,016,270.83 and 323,810.58

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Solution

The fourth proportional to 678,547.45, 1,016,270.83 and 323,810.58 is: 484,976.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,547.45 : 1,016,270.83 = 323,810.58 : x
  2. Step 2: Convert to fraction form
    678,547.45/1,016,270.83 = 323,810.58/x
  3. Step 3: Cross multiply
    678,547.45x = 1,016,270.83 × 323,810.58
  4. Step 4: Simplify right side
    678,547.45x = 329,079,245,280.33
  5. Step 5: Solve for x
    x = 329,079,245,280.33/678,547.45
  6. Step 6: Final answer
    x = 484,976.03

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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.