Home / 842,505.12-1,263,927.06-310,028.94

Finding the Fourth Proportional to 842,505.12, 1,263,927.06 and 310,028.94

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Solution

The fourth proportional to 842,505.12, 1,263,927.06 and 310,028.94 is: 465,105.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,505.12 : 1,263,927.06 = 310,028.94 : x
  2. Step 2: Convert to fraction form
    842,505.12/1,263,927.06 = 310,028.94/x
  3. Step 3: Cross multiply
    842,505.12x = 1,263,927.06 × 310,028.94
  4. Step 4: Simplify right side
    842,505.12x = 391,853,966,649.12
  5. Step 5: Solve for x
    x = 391,853,966,649.12/842,505.12
  6. Step 6: Final answer
    x = 465,105.74

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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.