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Finding the Fourth Proportional to 587,450.12, 810,620.15 and 345,718.26

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Solution

The fourth proportional to 587,450.12, 810,620.15 and 345,718.26 is: 477,055.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,450.12 : 810,620.15 = 345,718.26 : x
  2. Step 2: Convert to fraction form
    587,450.12/810,620.15 = 345,718.26/x
  3. Step 3: Cross multiply
    587,450.12x = 810,620.15 × 345,718.26
  4. Step 4: Simplify right side
    587,450.12x = 280,246,186,050.35
  5. Step 5: Solve for x
    x = 280,246,186,050.35/587,450.12
  6. Step 6: Final answer
    x = 477,055.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.