Home / 292,984.88-439,438.46-82,639.76

Finding the Fourth Proportional to 292,984.88, 439,438.46 and 82,639.76

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Solution

The fourth proportional to 292,984.88, 439,438.46 and 82,639.76 is: 123,948.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,984.88 : 439,438.46 = 82,639.76 : x
  2. Step 2: Convert to fraction form
    292,984.88/439,438.46 = 82,639.76/x
  3. Step 3: Cross multiply
    292,984.88x = 439,438.46 × 82,639.76
  4. Step 4: Simplify right side
    292,984.88x = 36,315,088,869.17
  5. Step 5: Solve for x
    x = 36,315,088,869.17/292,984.88
  6. Step 6: Final answer
    x = 123,948.68

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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.