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Finding the Fourth Proportional to 720,416.18, 994,147.46 and 414,539.85

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Solution

The fourth proportional to 720,416.18, 994,147.46 and 414,539.85 is: 572,049.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,416.18 : 994,147.46 = 414,539.85 : x
  2. Step 2: Convert to fraction form
    720,416.18/994,147.46 = 414,539.85/x
  3. Step 3: Cross multiply
    720,416.18x = 994,147.46 × 414,539.85
  4. Step 4: Simplify right side
    720,416.18x = 412,113,736,873.58
  5. Step 5: Solve for x
    x = 412,113,736,873.58/720,416.18
  6. Step 6: Final answer
    x = 572,049.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.