Home / 816,004.60-1,224,006.90-255,095.80

Finding the Fourth Proportional to 816,004.60, 1,224,006.90 and 255,095.80

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Solution

The fourth proportional to 816,004.60, 1,224,006.90 and 255,095.80 is: 382,643.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,004.60 : 1,224,006.90 = 255,095.80 : x
  2. Step 2: Convert to fraction form
    816,004.60/1,224,006.90 = 255,095.80/x
  3. Step 3: Cross multiply
    816,004.60x = 1,224,006.90 × 255,095.80
  4. Step 4: Simplify right side
    816,004.60x = 312,239,019,361.02
  5. Step 5: Solve for x
    x = 312,239,019,361.02/816,004.60
  6. Step 6: Final answer
    x = 382,643.70

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Similar ratio
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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.