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Finding the Fourth Proportional to 487,730.12, 673,297.69 and 366,917.50

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Solution

The fourth proportional to 487,730.12, 673,297.69 and 366,917.50 is: 506,519.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,730.12 : 673,297.69 = 366,917.50 : x
  2. Step 2: Convert to fraction form
    487,730.12/673,297.69 = 366,917.50/x
  3. Step 3: Cross multiply
    487,730.12x = 673,297.69 × 366,917.50
  4. Step 4: Simplify right side
    487,730.12x = 247,044,705,170.58
  5. Step 5: Solve for x
    x = 247,044,705,170.58/487,730.12
  6. Step 6: Final answer
    x = 506,519.27

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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.