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Finding the Fourth Proportional to 396,710.40, 595,065.60 and 239,246.40

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Solution

The fourth proportional to 396,710.40, 595,065.60 and 239,246.40 is: 358,869.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,710.40 : 595,065.60 = 239,246.40 : x
  2. Step 2: Convert to fraction form
    396,710.40/595,065.60 = 239,246.40/x
  3. Step 3: Cross multiply
    396,710.40x = 595,065.60 × 239,246.40
  4. Step 4: Simplify right side
    396,710.40x = 142,367,302,563.84
  5. Step 5: Solve for x
    x = 142,367,302,563.84/396,710.40
  6. Step 6: Final answer
    x = 358,869.60

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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.