Home / 808,338.10-1,212,507.07-453,379.80

Finding the Fourth Proportional to 808,338.10, 1,212,507.07 and 453,379.80

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Solution

The fourth proportional to 808,338.10, 1,212,507.07 and 453,379.80 is: 680,069.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,338.10 : 1,212,507.07 = 453,379.80 : x
  2. Step 2: Convert to fraction form
    808,338.10/1,212,507.07 = 453,379.80/x
  3. Step 3: Cross multiply
    808,338.10x = 1,212,507.07 × 453,379.80
  4. Step 4: Simplify right side
    808,338.10x = 549,726,212,038.55
  5. Step 5: Solve for x
    x = 549,726,212,038.55/808,338.10
  6. Step 6: Final answer
    x = 680,069.65

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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.