Home / 770,205.52-1,155,581.88-343,702.54

Finding the Fourth Proportional to 770,205.52, 1,155,581.88 and 343,702.54

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Solution

The fourth proportional to 770,205.52, 1,155,581.88 and 343,702.54 is: 515,675.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,205.52 : 1,155,581.88 = 343,702.54 : x
  2. Step 2: Convert to fraction form
    770,205.52/1,155,581.88 = 343,702.54/x
  3. Step 3: Cross multiply
    770,205.52x = 1,155,581.88 × 343,702.54
  4. Step 4: Simplify right side
    770,205.52x = 397,176,427,333.98
  5. Step 5: Solve for x
    x = 397,176,427,333.98/770,205.52
  6. Step 6: Final answer
    x = 515,675.90

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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.