Home / 705,511.20-1,058,383.52-326,810.40

Finding the Fourth Proportional to 705,511.20, 1,058,383.52 and 326,810.40

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Solution

The fourth proportional to 705,511.20, 1,058,383.52 and 326,810.40 is: 490,269.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,511.20 : 1,058,383.52 = 326,810.40 : x
  2. Step 2: Convert to fraction form
    705,511.20/1,058,383.52 = 326,810.40/x
  3. Step 3: Cross multiply
    705,511.20x = 1,058,383.52 × 326,810.40
  4. Step 4: Simplify right side
    705,511.20x = 345,890,741,524.61
  5. Step 5: Solve for x
    x = 345,890,741,524.61/705,511.20
  6. Step 6: Final answer
    x = 490,269.67

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Double scale
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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.