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Finding the Fourth Proportional to 704,671.77, 1,057,009.70 and 299,759.65

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Solution

The fourth proportional to 704,671.77, 1,057,009.70 and 299,759.65 is: 449,640.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,671.77 : 1,057,009.70 = 299,759.65 : x
  2. Step 2: Convert to fraction form
    704,671.77/1,057,009.70 = 299,759.65/x
  3. Step 3: Cross multiply
    704,671.77x = 1,057,009.70 × 299,759.65
  4. Step 4: Simplify right side
    704,671.77x = 316,848,861,771.16
  5. Step 5: Solve for x
    x = 316,848,861,771.16/704,671.77
  6. Step 6: Final answer
    x = 449,640.35

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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.