Home / 454,977.40-682,466.10-402,489.40

Finding the Fourth Proportional to 454,977.40, 682,466.10 and 402,489.40

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Solution

The fourth proportional to 454,977.40, 682,466.10 and 402,489.40 is: 603,734.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,977.40 : 682,466.10 = 402,489.40 : x
  2. Step 2: Convert to fraction form
    454,977.40/682,466.10 = 402,489.40/x
  3. Step 3: Cross multiply
    454,977.40x = 682,466.10 × 402,489.40
  4. Step 4: Simplify right side
    454,977.40x = 274,685,371,109.34
  5. Step 5: Solve for x
    x = 274,685,371,109.34/454,977.40
  6. Step 6: Final answer
    x = 603,734.10

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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.