Home / 705,346.20-1,058,019.30-492,769.80

Finding the Fourth Proportional to 705,346.20, 1,058,019.30 and 492,769.80

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Solution

The fourth proportional to 705,346.20, 1,058,019.30 and 492,769.80 is: 739,154.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,346.20 : 1,058,019.30 = 492,769.80 : x
  2. Step 2: Convert to fraction form
    705,346.20/1,058,019.30 = 492,769.80/x
  3. Step 3: Cross multiply
    705,346.20x = 1,058,019.30 × 492,769.80
  4. Step 4: Simplify right side
    705,346.20x = 521,359,958,857.14
  5. Step 5: Solve for x
    x = 521,359,958,857.14/705,346.20
  6. Step 6: Final answer
    x = 739,154.70

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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.