Home / 848,778.40-1,273,728.45-399,627.70

Finding the Fourth Proportional to 848,778.40, 1,273,728.45 and 399,627.70

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Solution

The fourth proportional to 848,778.40, 1,273,728.45 and 399,627.70 is: 599,705.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    848,778.40 : 1,273,728.45 = 399,627.70 : x
  2. Step 2: Convert to fraction form
    848,778.40/1,273,728.45 = 399,627.70/x
  3. Step 3: Cross multiply
    848,778.40x = 1,273,728.45 × 399,627.70
  4. Step 4: Simplify right side
    848,778.40x = 509,017,170,898.07
  5. Step 5: Solve for x
    x = 509,017,170,898.07/848,778.40
  6. Step 6: Final answer
    x = 599,705.61

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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.