Home / 671,629.70-1,007,444.55-665,408.90

Finding the Fourth Proportional to 671,629.70, 1,007,444.55 and 665,408.90

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Solution

The fourth proportional to 671,629.70, 1,007,444.55 and 665,408.90 is: 998,113.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,629.70 : 1,007,444.55 = 665,408.90 : x
  2. Step 2: Convert to fraction form
    671,629.70/1,007,444.55 = 665,408.90/x
  3. Step 3: Cross multiply
    671,629.70x = 1,007,444.55 × 665,408.90
  4. Step 4: Simplify right side
    671,629.70x = 670,362,569,826.50
  5. Step 5: Solve for x
    x = 670,362,569,826.50/671,629.70
  6. Step 6: Final answer
    x = 998,113.35

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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.