Home / 1,078,711.40-1,618,520.70-579,492.20

Finding the Fourth Proportional to 1,078,711.40, 1,618,520.70 and 579,492.20

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Solution

The fourth proportional to 1,078,711.40, 1,618,520.70 and 579,492.20 is: 869,481.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,711.40 : 1,618,520.70 = 579,492.20 : x
  2. Step 2: Convert to fraction form
    1,078,711.40/1,618,520.70 = 579,492.20/x
  3. Step 3: Cross multiply
    1,078,711.40x = 1,618,520.70 × 579,492.20
  4. Step 4: Simplify right side
    1,078,711.40x = 937,920,121,188.54
  5. Step 5: Solve for x
    x = 937,920,121,188.54/1,078,711.40
  6. Step 6: Final answer
    x = 869,481.98

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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.