Home / 792,590.10-1,188,145.35-312,821.70

Finding the Fourth Proportional to 792,590.10, 1,188,145.35 and 312,821.70

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Solution

The fourth proportional to 792,590.10, 1,188,145.35 and 312,821.70 is: 468,940.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    792,590.10 : 1,188,145.35 = 312,821.70 : x
  2. Step 2: Convert to fraction form
    792,590.10/1,188,145.35 = 312,821.70/x
  3. Step 3: Cross multiply
    792,590.10x = 1,188,145.35 × 312,821.70
  4. Step 4: Simplify right side
    792,590.10x = 371,677,648,234.10
  5. Step 5: Solve for x
    x = 371,677,648,234.10/792,590.10
  6. Step 6: Final answer
    x = 468,940.56

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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.