Home / 726,915.74-1,003,136.28-400,218.44

Finding the Fourth Proportional to 726,915.74, 1,003,136.28 and 400,218.44

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Solution

The fourth proportional to 726,915.74, 1,003,136.28 and 400,218.44 is: 552,297.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,915.74 : 1,003,136.28 = 400,218.44 : x
  2. Step 2: Convert to fraction form
    726,915.74/1,003,136.28 = 400,218.44/x
  3. Step 3: Cross multiply
    726,915.74x = 1,003,136.28 × 400,218.44
  4. Step 4: Simplify right side
    726,915.74x = 401,473,637,089.00
  5. Step 5: Solve for x
    x = 401,473,637,089.00/726,915.74
  6. Step 6: Final answer
    x = 552,297.35

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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.