Home / 688,114.78-1,032,172.16-214,840.69

Finding the Fourth Proportional to 688,114.78, 1,032,172.16 and 214,840.69

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Solution

The fourth proportional to 688,114.78, 1,032,172.16 and 214,840.69 is: 322,261.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,114.78 : 1,032,172.16 = 214,840.69 : x
  2. Step 2: Convert to fraction form
    688,114.78/1,032,172.16 = 214,840.69/x
  3. Step 3: Cross multiply
    688,114.78x = 1,032,172.16 × 214,840.69
  4. Step 4: Simplify right side
    688,114.78x = 221,752,575,398.56
  5. Step 5: Solve for x
    x = 221,752,575,398.56/688,114.78
  6. Step 6: Final answer
    x = 322,261.03

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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.