Home / 1,078,952.40-1,618,234.20-678,877.20

Finding the Fourth Proportional to 1,078,952.40, 1,618,234.20 and 678,877.20

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Solution

The fourth proportional to 1,078,952.40, 1,618,234.20 and 678,877.20 is: 1,018,193.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,952.40 : 1,618,234.20 = 678,877.20 : x
  2. Step 2: Convert to fraction form
    1,078,952.40/1,618,234.20 = 678,877.20/x
  3. Step 3: Cross multiply
    1,078,952.40x = 1,618,234.20 × 678,877.20
  4. Step 4: Simplify right side
    1,078,952.40x = 1,098,582,302,640.24
  5. Step 5: Solve for x
    x = 1,098,582,302,640.24/1,078,952.40
  6. Step 6: Final answer
    x = 1,018,193.48

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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.