Home / 853,271.70-1,279,907.55-479,246.10

Finding the Fourth Proportional to 853,271.70, 1,279,907.55 and 479,246.10

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Solution

The fourth proportional to 853,271.70, 1,279,907.55 and 479,246.10 is: 718,869.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,271.70 : 1,279,907.55 = 479,246.10 : x
  2. Step 2: Convert to fraction form
    853,271.70/1,279,907.55 = 479,246.10/x
  3. Step 3: Cross multiply
    853,271.70x = 1,279,907.55 × 479,246.10
  4. Step 4: Simplify right side
    853,271.70x = 613,390,701,698.06
  5. Step 5: Solve for x
    x = 613,390,701,698.06/853,271.70
  6. Step 6: Final answer
    x = 718,869.15

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Double scale
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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.