Home / 457,874.28-631,998.18-276,557.40

Finding the Fourth Proportional to 457,874.28, 631,998.18 and 276,557.40

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Solution

The fourth proportional to 457,874.28, 631,998.18 and 276,557.40 is: 381,728.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,874.28 : 631,998.18 = 276,557.40 : x
  2. Step 2: Convert to fraction form
    457,874.28/631,998.18 = 276,557.40/x
  3. Step 3: Cross multiply
    457,874.28x = 631,998.18 × 276,557.40
  4. Step 4: Simplify right side
    457,874.28x = 174,783,773,465.53
  5. Step 5: Solve for x
    x = 174,783,773,465.53/457,874.28
  6. Step 6: Final answer
    x = 381,728.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.