Home / 678,918.40-1,018,524.48-258,202.24

Finding the Fourth Proportional to 678,918.40, 1,018,524.48 and 258,202.24

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Solution

The fourth proportional to 678,918.40, 1,018,524.48 and 258,202.24 is: 387,359.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,918.40 : 1,018,524.48 = 258,202.24 : x
  2. Step 2: Convert to fraction form
    678,918.40/1,018,524.48 = 258,202.24/x
  3. Step 3: Cross multiply
    678,918.40x = 1,018,524.48 × 258,202.24
  4. Step 4: Simplify right side
    678,918.40x = 262,985,302,230.84
  5. Step 5: Solve for x
    x = 262,985,302,230.84/678,918.40
  6. Step 6: Final answer
    x = 387,359.22

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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.