Home / 682,938.90-1,024,408.35-328,644.90

Finding the Fourth Proportional to 682,938.90, 1,024,408.35 and 328,644.90

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Solution

The fourth proportional to 682,938.90, 1,024,408.35 and 328,644.90 is: 492,967.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,938.90 : 1,024,408.35 = 328,644.90 : x
  2. Step 2: Convert to fraction form
    682,938.90/1,024,408.35 = 328,644.90/x
  3. Step 3: Cross multiply
    682,938.90x = 1,024,408.35 × 328,644.90
  4. Step 4: Simplify right side
    682,938.90x = 336,666,579,744.92
  5. Step 5: Solve for x
    x = 336,666,579,744.92/682,938.90
  6. Step 6: Final answer
    x = 492,967.35

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Double scale
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Similar ratio
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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.