Home / 678,802.33-1,018,424.67-323,770.15

Finding the Fourth Proportional to 678,802.33, 1,018,424.67 and 323,770.15

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Solution

The fourth proportional to 678,802.33, 1,018,424.67 and 323,770.15 is: 485,760.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,802.33 : 1,018,424.67 = 323,770.15 : x
  2. Step 2: Convert to fraction form
    678,802.33/1,018,424.67 = 323,770.15/x
  3. Step 3: Cross multiply
    678,802.33x = 1,018,424.67 × 323,770.15
  4. Step 4: Simplify right side
    678,802.33x = 329,735,508,169.60
  5. Step 5: Solve for x
    x = 329,735,508,169.60/678,802.33
  6. Step 6: Final answer
    x = 485,760.72

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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.