Home / 678,555.20-1,016,282.43-323,818.35

Finding the Fourth Proportional to 678,555.20, 1,016,282.43 and 323,818.35

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Solution

The fourth proportional to 678,555.20, 1,016,282.43 and 323,818.35 is: 484,987.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,555.20 : 1,016,282.43 = 323,818.35 : x
  2. Step 2: Convert to fraction form
    678,555.20/1,016,282.43 = 323,818.35/x
  3. Step 3: Cross multiply
    678,555.20x = 1,016,282.43 × 323,818.35
  4. Step 4: Simplify right side
    678,555.20x = 329,090,899,616.59
  5. Step 5: Solve for x
    x = 329,090,899,616.59/678,555.20
  6. Step 6: Final answer
    x = 484,987.67

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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.