Home / 853,012.78-1,279,917.83-373,178.40

Finding the Fourth Proportional to 853,012.78, 1,279,917.83 and 373,178.40

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Solution

The fourth proportional to 853,012.78, 1,279,917.83 and 373,178.40 is: 559,942.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,012.78 : 1,279,917.83 = 373,178.40 : x
  2. Step 2: Convert to fraction form
    853,012.78/1,279,917.83 = 373,178.40/x
  3. Step 3: Cross multiply
    853,012.78x = 1,279,917.83 × 373,178.40
  4. Step 4: Simplify right side
    853,012.78x = 477,637,691,263.66
  5. Step 5: Solve for x
    x = 477,637,691,263.66/853,012.78
  6. Step 6: Final answer
    x = 559,942.01

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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.