Home / 293,025.60-439,538.40-289,915.20

Finding the Fourth Proportional to 293,025.60, 439,538.40 and 289,915.20

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Solution

The fourth proportional to 293,025.60, 439,538.40 and 289,915.20 is: 434,872.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,025.60 : 439,538.40 = 289,915.20 : x
  2. Step 2: Convert to fraction form
    293,025.60/439,538.40 = 289,915.20/x
  3. Step 3: Cross multiply
    293,025.60x = 439,538.40 × 289,915.20
  4. Step 4: Simplify right side
    293,025.60x = 127,428,863,143.68
  5. Step 5: Solve for x
    x = 127,428,863,143.68/293,025.60
  6. Step 6: Final answer
    x = 434,872.80

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1.5x scale

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.