Home / 434,719.80-652,079.70-308,748.60

Finding the Fourth Proportional to 434,719.80, 652,079.70 and 308,748.60

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Solution

The fourth proportional to 434,719.80, 652,079.70 and 308,748.60 is: 463,122.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,719.80 : 652,079.70 = 308,748.60 : x
  2. Step 2: Convert to fraction form
    434,719.80/652,079.70 = 308,748.60/x
  3. Step 3: Cross multiply
    434,719.80x = 652,079.70 × 308,748.60
  4. Step 4: Simplify right side
    434,719.80x = 201,328,694,463.42
  5. Step 5: Solve for x
    x = 201,328,694,463.42/434,719.80
  6. Step 6: Final answer
    x = 463,122.90

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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.