Home / 678,968.40-1,018,673.70-323,936.44

Finding the Fourth Proportional to 678,968.40, 1,018,673.70 and 323,936.44

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Solution

The fourth proportional to 678,968.40, 1,018,673.70 and 323,936.44 is: 486,010.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,968.40 : 1,018,673.70 = 323,936.44 : x
  2. Step 2: Convert to fraction form
    678,968.40/1,018,673.70 = 323,936.44/x
  3. Step 3: Cross multiply
    678,968.40x = 1,018,673.70 × 323,936.44
  4. Step 4: Simplify right side
    678,968.40x = 329,985,531,899.63
  5. Step 5: Solve for x
    x = 329,985,531,899.63/678,968.40
  6. Step 6: Final answer
    x = 486,010.15

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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.