Home / 743,441.20-1,115,161.80-705,059.35

Finding the Fourth Proportional to 743,441.20, 1,115,161.80 and 705,059.35

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Solution

The fourth proportional to 743,441.20, 1,115,161.80 and 705,059.35 is: 1,057,589.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,441.20 : 1,115,161.80 = 705,059.35 : x
  2. Step 2: Convert to fraction form
    743,441.20/1,115,161.80 = 705,059.35/x
  3. Step 3: Cross multiply
    743,441.20x = 1,115,161.80 × 705,059.35
  4. Step 4: Simplify right side
    743,441.20x = 786,255,253,852.83
  5. Step 5: Solve for x
    x = 786,255,253,852.83/743,441.20
  6. Step 6: Final answer
    x = 1,057,589.03

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Double scale
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Similar ratio
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1.5x scale

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.