Home / 686,347.31-1,029,671.73-281,541.92

Finding the Fourth Proportional to 686,347.31, 1,029,671.73 and 281,541.92

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Solution

The fourth proportional to 686,347.31, 1,029,671.73 and 281,541.92 is: 422,374.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,347.31 : 1,029,671.73 = 281,541.92 : x
  2. Step 2: Convert to fraction form
    686,347.31/1,029,671.73 = 281,541.92/x
  3. Step 3: Cross multiply
    686,347.31x = 1,029,671.73 × 281,541.92
  4. Step 4: Simplify right side
    686,347.31x = 289,895,750,685.56
  5. Step 5: Solve for x
    x = 289,895,750,685.56/686,347.31
  6. Step 6: Final answer
    x = 422,374.72

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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.