Home / 688,435.54-1,032,297.01-309,029.58

Finding the Fourth Proportional to 688,435.54, 1,032,297.01 and 309,029.58

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Solution

The fourth proportional to 688,435.54, 1,032,297.01 and 309,029.58 is: 463,384.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,435.54 : 1,032,297.01 = 309,029.58 : x
  2. Step 2: Convert to fraction form
    688,435.54/1,032,297.01 = 309,029.58/x
  3. Step 3: Cross multiply
    688,435.54x = 1,032,297.01 × 309,029.58
  4. Step 4: Simplify right side
    688,435.54x = 319,010,310,662.98
  5. Step 5: Solve for x
    x = 319,010,310,662.98/688,435.54
  6. Step 6: Final answer
    x = 463,384.43

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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.