Home / 684,450.12-1,026,821.70-204,715.56

Finding the Fourth Proportional to 684,450.12, 1,026,821.70 and 204,715.56

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Solution

The fourth proportional to 684,450.12, 1,026,821.70 and 204,715.56 is: 307,117.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,450.12 : 1,026,821.70 = 204,715.56 : x
  2. Step 2: Convert to fraction form
    684,450.12/1,026,821.70 = 204,715.56/x
  3. Step 3: Cross multiply
    684,450.12x = 1,026,821.70 × 204,715.56
  4. Step 4: Simplify right side
    684,450.12x = 210,206,379,335.65
  5. Step 5: Solve for x
    x = 210,206,379,335.65/684,450.12
  6. Step 6: Final answer
    x = 307,117.16

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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.