Home / 686,665.48-1,029,787.77-474,794.91

Finding the Fourth Proportional to 686,665.48, 1,029,787.77 and 474,794.91

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Solution

The fourth proportional to 686,665.48, 1,029,787.77 and 474,794.91 is: 712,046.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,665.48 : 1,029,787.77 = 474,794.91 : x
  2. Step 2: Convert to fraction form
    686,665.48/1,029,787.77 = 474,794.91/x
  3. Step 3: Cross multiply
    686,665.48x = 1,029,787.77 × 474,794.91
  4. Step 4: Simplify right side
    686,665.48x = 488,937,991,576.25
  5. Step 5: Solve for x
    x = 488,937,991,576.25/686,665.48
  6. Step 6: Final answer
    x = 712,046.85

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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.