Home / 853,427.96-1,280,771.90-404,148.10

Finding the Fourth Proportional to 853,427.96, 1,280,771.90 and 404,148.10

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Solution

The fourth proportional to 853,427.96, 1,280,771.90 and 404,148.10 is: 606,520.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,427.96 : 1,280,771.90 = 404,148.10 : x
  2. Step 2: Convert to fraction form
    853,427.96/1,280,771.90 = 404,148.10/x
  3. Step 3: Cross multiply
    853,427.96x = 1,280,771.90 × 404,148.10
  4. Step 4: Simplify right side
    853,427.96x = 517,621,529,918.39
  5. Step 5: Solve for x
    x = 517,621,529,918.39/853,427.96
  6. Step 6: Final answer
    x = 606,520.47

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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.