Home / 855,042.76-1,282,562.94-342,938.92

Finding the Fourth Proportional to 855,042.76, 1,282,562.94 and 342,938.92

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Solution

The fourth proportional to 855,042.76, 1,282,562.94 and 342,938.92 is: 514,407.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,042.76 : 1,282,562.94 = 342,938.92 : x
  2. Step 2: Convert to fraction form
    855,042.76/1,282,562.94 = 342,938.92/x
  3. Step 3: Cross multiply
    855,042.76x = 1,282,562.94 × 342,938.92
  4. Step 4: Simplify right side
    855,042.76x = 439,840,749,475.63
  5. Step 5: Solve for x
    x = 439,840,749,475.63/855,042.76
  6. Step 6: Final answer
    x = 514,407.90

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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.