Home / 678,545.45-1,016,267.83-323,808.58

Finding the Fourth Proportional to 678,545.45, 1,016,267.83 and 323,808.58

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Solution

The fourth proportional to 678,545.45, 1,016,267.83 and 323,808.58 is: 484,973.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,545.45 : 1,016,267.83 = 323,808.58 : x
  2. Step 2: Convert to fraction form
    678,545.45/1,016,267.83 = 323,808.58/x
  3. Step 3: Cross multiply
    678,545.45x = 1,016,267.83 × 323,808.58
  4. Step 4: Simplify right side
    678,545.45x = 329,076,239,581.79
  5. Step 5: Solve for x
    x = 329,076,239,581.79/678,545.45
  6. Step 6: Final answer
    x = 484,973.03

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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.