Home / 454,966.70-682,482.45-139,423.10

Finding the Fourth Proportional to 454,966.70, 682,482.45 and 139,423.10

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Solution

The fourth proportional to 454,966.70, 682,482.45 and 139,423.10 is: 209,144.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,966.70 : 682,482.45 = 139,423.10 : x
  2. Step 2: Convert to fraction form
    454,966.70/682,482.45 = 139,423.10/x
  3. Step 3: Cross multiply
    454,966.70x = 682,482.45 × 139,423.10
  4. Step 4: Simplify right side
    454,966.70x = 95,153,818,874.60
  5. Step 5: Solve for x
    x = 95,153,818,874.60/454,966.70
  6. Step 6: Final answer
    x = 209,144.58

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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.