Home / 816,817.15-1,225,302.56-240,440.81

Finding the Fourth Proportional to 816,817.15, 1,225,302.56 and 240,440.81

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Solution

The fourth proportional to 816,817.15, 1,225,302.56 and 240,440.81 is: 360,683.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,817.15 : 1,225,302.56 = 240,440.81 : x
  2. Step 2: Convert to fraction form
    816,817.15/1,225,302.56 = 240,440.81/x
  3. Step 3: Cross multiply
    816,817.15x = 1,225,302.56 × 240,440.81
  4. Step 4: Simplify right side
    816,817.15x = 294,612,737,963.88
  5. Step 5: Solve for x
    x = 294,612,737,963.88/816,817.15
  6. Step 6: Final answer
    x = 360,683.83

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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.