Home / 853,516.59-1,280,993.17-426,924.47

Finding the Fourth Proportional to 853,516.59, 1,280,993.17 and 426,924.47

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Solution

The fourth proportional to 853,516.59, 1,280,993.17 and 426,924.47 is: 640,745.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,516.59 : 1,280,993.17 = 426,924.47 : x
  2. Step 2: Convert to fraction form
    853,516.59/1,280,993.17 = 426,924.47/x
  3. Step 3: Cross multiply
    853,516.59x = 1,280,993.17 × 426,924.47
  4. Step 4: Simplify right side
    853,516.59x = 546,887,322,703.59
  5. Step 5: Solve for x
    x = 546,887,322,703.59/853,516.59
  6. Step 6: Final answer
    x = 640,745.98

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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.