Home / 686,710.95-1,030,195.64-276,411.61

Finding the Fourth Proportional to 686,710.95, 1,030,195.64 and 276,411.61

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Solution

The fourth proportional to 686,710.95, 1,030,195.64 and 276,411.61 is: 414,669.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,710.95 : 1,030,195.64 = 276,411.61 : x
  2. Step 2: Convert to fraction form
    686,710.95/1,030,195.64 = 276,411.61/x
  3. Step 3: Cross multiply
    686,710.95x = 1,030,195.64 × 276,411.61
  4. Step 4: Simplify right side
    686,710.95x = 284,758,035,467.38
  5. Step 5: Solve for x
    x = 284,758,035,467.38/686,710.95
  6. Step 6: Final answer
    x = 414,669.43

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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.