Home / 688,524.30-1,032,786.45-215,208.90

Finding the Fourth Proportional to 688,524.30, 1,032,786.45 and 215,208.90

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Solution

The fourth proportional to 688,524.30, 1,032,786.45 and 215,208.90 is: 322,813.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,524.30 : 1,032,786.45 = 215,208.90 : x
  2. Step 2: Convert to fraction form
    688,524.30/1,032,786.45 = 215,208.90/x
  3. Step 3: Cross multiply
    688,524.30x = 1,032,786.45 × 215,208.90
  4. Step 4: Simplify right side
    688,524.30x = 222,264,835,839.41
  5. Step 5: Solve for x
    x = 222,264,835,839.41/688,524.30
  6. Step 6: Final answer
    x = 322,813.35

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1.5x scale

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.