Home / 786,911.36-1,180,071.79-254,289.38

Finding the Fourth Proportional to 786,911.36, 1,180,071.79 and 254,289.38

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Solution

The fourth proportional to 786,911.36, 1,180,071.79 and 254,289.38 is: 381,338.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,911.36 : 1,180,071.79 = 254,289.38 : x
  2. Step 2: Convert to fraction form
    786,911.36/1,180,071.79 = 254,289.38/x
  3. Step 3: Cross multiply
    786,911.36x = 1,180,071.79 × 254,289.38
  4. Step 4: Simplify right side
    786,911.36x = 300,079,717,298.51
  5. Step 5: Solve for x
    x = 300,079,717,298.51/786,911.36
  6. Step 6: Final answer
    x = 381,338.65

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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.