Home / 725,175.42-1,000,420.11-483,221.94

Finding the Fourth Proportional to 725,175.42, 1,000,420.11 and 483,221.94

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Solution

The fourth proportional to 725,175.42, 1,000,420.11 and 483,221.94 is: 666,631.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,175.42 : 1,000,420.11 = 483,221.94 : x
  2. Step 2: Convert to fraction form
    725,175.42/1,000,420.11 = 483,221.94/x
  3. Step 3: Cross multiply
    725,175.42x = 1,000,420.11 × 483,221.94
  4. Step 4: Simplify right side
    725,175.42x = 483,424,946,369.21
  5. Step 5: Solve for x
    x = 483,424,946,369.21/725,175.42
  6. Step 6: Final answer
    x = 666,631.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.