Home / 842,561.11-1,263,717.06-309,957.57

Finding the Fourth Proportional to 842,561.11, 1,263,717.06 and 309,957.57

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Solution

The fourth proportional to 842,561.11, 1,263,717.06 and 309,957.57 is: 464,890.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,561.11 : 1,263,717.06 = 309,957.57 : x
  2. Step 2: Convert to fraction form
    842,561.11/1,263,717.06 = 309,957.57/x
  3. Step 3: Cross multiply
    842,561.11x = 1,263,717.06 × 309,957.57
  4. Step 4: Simplify right side
    842,561.11x = 391,698,669,085.14
  5. Step 5: Solve for x
    x = 391,698,669,085.14/842,561.11
  6. Step 6: Final answer
    x = 464,890.52

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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.