Home / 496,979.40-746,246.70-378,784.20

Finding the Fourth Proportional to 496,979.40, 746,246.70 and 378,784.20

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Solution

The fourth proportional to 496,979.40, 746,246.70 and 378,784.20 is: 568,768.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,979.40 : 746,246.70 = 378,784.20 : x
  2. Step 2: Convert to fraction form
    496,979.40/746,246.70 = 378,784.20/x
  3. Step 3: Cross multiply
    496,979.40x = 746,246.70 × 378,784.20
  4. Step 4: Simplify right side
    496,979.40x = 282,666,459,262.14
  5. Step 5: Solve for x
    x = 282,666,459,262.14/496,979.40
  6. Step 6: Final answer
    x = 568,768.97

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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.