Home / 864,767.88-1,297,949.20-438,602.80

Finding the Fourth Proportional to 864,767.88, 1,297,949.20 and 438,602.80

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Solution

The fourth proportional to 864,767.88, 1,297,949.20 and 438,602.80 is: 658,308.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,767.88 : 1,297,949.20 = 438,602.80 : x
  2. Step 2: Convert to fraction form
    864,767.88/1,297,949.20 = 438,602.80/x
  3. Step 3: Cross multiply
    864,767.88x = 1,297,949.20 × 438,602.80
  4. Step 4: Simplify right side
    864,767.88x = 569,284,153,377.76
  5. Step 5: Solve for x
    x = 569,284,153,377.76/864,767.88
  6. Step 6: Final answer
    x = 658,308.62

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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.