Home / 858,643.35-1,288,110.83-459,175.65

Finding the Fourth Proportional to 858,643.35, 1,288,110.83 and 459,175.65

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Solution

The fourth proportional to 858,643.35, 1,288,110.83 and 459,175.65 is: 688,841.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,643.35 : 1,288,110.83 = 459,175.65 : x
  2. Step 2: Convert to fraction form
    858,643.35/1,288,110.83 = 459,175.65/x
  3. Step 3: Cross multiply
    858,643.35x = 1,288,110.83 × 459,175.65
  4. Step 4: Simplify right side
    858,643.35x = 591,469,125,341.41
  5. Step 5: Solve for x
    x = 591,469,125,341.41/858,643.35
  6. Step 6: Final answer
    x = 688,841.44

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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.