Home / 688,297.15-1,032,466.07-328,505.90

Finding the Fourth Proportional to 688,297.15, 1,032,466.07 and 328,505.90

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Solution

The fourth proportional to 688,297.15, 1,032,466.07 and 328,505.90 is: 492,768.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,297.15 : 1,032,466.07 = 328,505.90 : x
  2. Step 2: Convert to fraction form
    688,297.15/1,032,466.07 = 328,505.90/x
  3. Step 3: Cross multiply
    688,297.15x = 1,032,466.07 × 328,505.90
  4. Step 4: Simplify right side
    688,297.15x = 339,171,198,991.26
  5. Step 5: Solve for x
    x = 339,171,198,991.26/688,297.15
  6. Step 6: Final answer
    x = 492,768.57

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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.