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Finding the Fourth Proportional to 985,270.10, 1,477,905.15 and 945,904.10

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Solution

The fourth proportional to 985,270.10, 1,477,905.15 and 945,904.10 is: 1,418,856.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,270.10 : 1,477,905.15 = 945,904.10 : x
  2. Step 2: Convert to fraction form
    985,270.10/1,477,905.15 = 945,904.10/x
  3. Step 3: Cross multiply
    985,270.10x = 1,477,905.15 × 945,904.10
  4. Step 4: Simplify right side
    985,270.10x = 1,397,956,540,796.12
  5. Step 5: Solve for x
    x = 1,397,956,540,796.12/985,270.10
  6. Step 6: Final answer
    x = 1,418,856.15

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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.