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Finding the Fourth Proportional to 543,613.60, 815,420.40 and 454,967.20

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Solution

The fourth proportional to 543,613.60, 815,420.40 and 454,967.20 is: 682,450.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,613.60 : 815,420.40 = 454,967.20 : x
  2. Step 2: Convert to fraction form
    543,613.60/815,420.40 = 454,967.20/x
  3. Step 3: Cross multiply
    543,613.60x = 815,420.40 × 454,967.20
  4. Step 4: Simplify right side
    543,613.60x = 370,989,536,210.88
  5. Step 5: Solve for x
    x = 370,989,536,210.88/543,613.60
  6. Step 6: Final answer
    x = 682,450.80

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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.