Home / 457,528.40-687,079.92-437,845.44

Finding the Fourth Proportional to 457,528.40, 687,079.92 and 437,845.44

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Solution

The fourth proportional to 457,528.40, 687,079.92 and 437,845.44 is: 657,521.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,528.40 : 687,079.92 = 437,845.44 : x
  2. Step 2: Convert to fraction form
    457,528.40/687,079.92 = 437,845.44/x
  3. Step 3: Cross multiply
    457,528.40x = 687,079.92 × 437,845.44
  4. Step 4: Simplify right side
    457,528.40x = 300,834,809,887.57
  5. Step 5: Solve for x
    x = 300,834,809,887.57/457,528.40
  6. Step 6: Final answer
    x = 657,521.61

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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.