Home / 678,934.81-1,018,592.88-199,173.94

Finding the Fourth Proportional to 678,934.81, 1,018,592.88 and 199,173.94

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Solution

The fourth proportional to 678,934.81, 1,018,592.88 and 199,173.94 is: 298,816.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,934.81 : 1,018,592.88 = 199,173.94 : x
  2. Step 2: Convert to fraction form
    678,934.81/1,018,592.88 = 199,173.94/x
  3. Step 3: Cross multiply
    678,934.81x = 1,018,592.88 × 199,173.94
  4. Step 4: Simplify right side
    678,934.81x = 202,877,153,872.16
  5. Step 5: Solve for x
    x = 202,877,153,872.16/678,934.81
  6. Step 6: Final answer
    x = 298,816.84

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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.