Home / 855,043.76-1,282,564.44-342,939.92

Finding the Fourth Proportional to 855,043.76, 1,282,564.44 and 342,939.92

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Solution

The fourth proportional to 855,043.76, 1,282,564.44 and 342,939.92 is: 514,409.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,043.76 : 1,282,564.44 = 342,939.92 : x
  2. Step 2: Convert to fraction form
    855,043.76/1,282,564.44 = 342,939.92/x
  3. Step 3: Cross multiply
    855,043.76x = 1,282,564.44 × 342,939.92
  4. Step 4: Simplify right side
    855,043.76x = 439,842,546,448.45
  5. Step 5: Solve for x
    x = 439,842,546,448.45/855,043.76
  6. Step 6: Final answer
    x = 514,409.40

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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.