Home / 686,639.60-1,027,885.80-603,695.60

Finding the Fourth Proportional to 686,639.60, 1,027,885.80 and 603,695.60

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Solution

The fourth proportional to 686,639.60, 1,027,885.80 and 603,695.60 is: 903,720.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,639.60 : 1,027,885.80 = 603,695.60 : x
  2. Step 2: Convert to fraction form
    686,639.60/1,027,885.80 = 603,695.60/x
  3. Step 3: Cross multiply
    686,639.60x = 1,027,885.80 × 603,695.60
  4. Step 4: Simplify right side
    686,639.60x = 620,530,134,762.48
  5. Step 5: Solve for x
    x = 620,530,134,762.48/686,639.60
  6. Step 6: Final answer
    x = 903,720.28

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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.