Home / 698,871.10-1,048,103.92-272,311.78

Finding the Fourth Proportional to 698,871.10, 1,048,103.92 and 272,311.78

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Solution

The fourth proportional to 698,871.10, 1,048,103.92 and 272,311.78 is: 408,388.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,871.10 : 1,048,103.92 = 272,311.78 : x
  2. Step 2: Convert to fraction form
    698,871.10/1,048,103.92 = 272,311.78/x
  3. Step 3: Cross multiply
    698,871.10x = 1,048,103.92 × 272,311.78
  4. Step 4: Simplify right side
    698,871.10x = 285,411,044,080.18
  5. Step 5: Solve for x
    x = 285,411,044,080.18/698,871.10
  6. Step 6: Final answer
    x = 408,388.68

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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.