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Finding the Fourth Proportional to 985,212, 1,477,358.64 and 511,770.24

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Solution

The fourth proportional to 985,212, 1,477,358.64 and 511,770.24 is: 767,416.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,212 : 1,477,358.64 = 511,770.24 : x
  2. Step 2: Convert to fraction form
    985,212/1,477,358.64 = 511,770.24/x
  3. Step 3: Cross multiply
    985,212x = 1,477,358.64 × 511,770.24
  4. Step 4: Simplify right side
    985,212x = 756,068,185,758.87
  5. Step 5: Solve for x
    x = 756,068,185,758.87/985,212
  6. Step 6: Final answer
    x = 767,416.74

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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.