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Finding the Fourth Proportional to 488,210.39, 673,584.58 and 315,855.35

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Solution

The fourth proportional to 488,210.39, 673,584.58 and 315,855.35 is: 435,786.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,210.39 : 673,584.58 = 315,855.35 : x
  2. Step 2: Convert to fraction form
    488,210.39/673,584.58 = 315,855.35/x
  3. Step 3: Cross multiply
    488,210.39x = 673,584.58 × 315,855.35
  4. Step 4: Simplify right side
    488,210.39x = 212,755,293,270.50
  5. Step 5: Solve for x
    x = 212,755,293,270.50/488,210.39
  6. Step 6: Final answer
    x = 435,786.08

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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.