Home / 816,304.40-1,224,136.20-310,596.80

Finding the Fourth Proportional to 816,304.40, 1,224,136.20 and 310,596.80

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Solution

The fourth proportional to 816,304.40, 1,224,136.20 and 310,596.80 is: 465,773.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,304.40 : 1,224,136.20 = 310,596.80 : x
  2. Step 2: Convert to fraction form
    816,304.40/1,224,136.20 = 310,596.80/x
  3. Step 3: Cross multiply
    816,304.40x = 1,224,136.20 × 310,596.80
  4. Step 4: Simplify right side
    816,304.40x = 380,212,786,484.16
  5. Step 5: Solve for x
    x = 380,212,786,484.16/816,304.40
  6. Step 6: Final answer
    x = 465,773.29

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1.5x scale

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.