Home / 705,328.20-1,057,992.30-492,751.80

Finding the Fourth Proportional to 705,328.20, 1,057,992.30 and 492,751.80

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Solution

The fourth proportional to 705,328.20, 1,057,992.30 and 492,751.80 is: 739,127.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,328.20 : 1,057,992.30 = 492,751.80 : x
  2. Step 2: Convert to fraction form
    705,328.20/1,057,992.30 = 492,751.80/x
  3. Step 3: Cross multiply
    705,328.20x = 1,057,992.30 × 492,751.80
  4. Step 4: Simplify right side
    705,328.20x = 521,327,610,211.14
  5. Step 5: Solve for x
    x = 521,327,610,211.14/705,328.20
  6. Step 6: Final answer
    x = 739,127.70

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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.