Home / 688,920.24-1,032,822.72-215,361.84

Finding the Fourth Proportional to 688,920.24, 1,032,822.72 and 215,361.84

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Solution

The fourth proportional to 688,920.24, 1,032,822.72 and 215,361.84 is: 322,868.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,920.24 : 1,032,822.72 = 215,361.84 : x
  2. Step 2: Convert to fraction form
    688,920.24/1,032,822.72 = 215,361.84/x
  3. Step 3: Cross multiply
    688,920.24x = 1,032,822.72 × 215,361.84
  4. Step 4: Simplify right side
    688,920.24x = 222,430,601,373.01
  5. Step 5: Solve for x
    x = 222,430,601,373.01/688,920.24
  6. Step 6: Final answer
    x = 322,868.44

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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.