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Finding the Fourth Proportional to 906,956.64, 1,360,960.68 and 457,712.64

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Solution

The fourth proportional to 906,956.64, 1,360,960.68 and 457,712.64 is: 686,834.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    906,956.64 : 1,360,960.68 = 457,712.64 : x
  2. Step 2: Convert to fraction form
    906,956.64/1,360,960.68 = 457,712.64/x
  3. Step 3: Cross multiply
    906,956.64x = 1,360,960.68 × 457,712.64
  4. Step 4: Simplify right side
    906,956.64x = 622,928,905,779.00
  5. Step 5: Solve for x
    x = 622,928,905,779.00/906,956.64
  6. Step 6: Final answer
    x = 686,834.27

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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.