Home / 816,005.80-1,224,008.70-255,039.40

Finding the Fourth Proportional to 816,005.80, 1,224,008.70 and 255,039.40

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Solution

The fourth proportional to 816,005.80, 1,224,008.70 and 255,039.40 is: 382,559.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,005.80 : 1,224,008.70 = 255,039.40 : x
  2. Step 2: Convert to fraction form
    816,005.80/1,224,008.70 = 255,039.40/x
  3. Step 3: Cross multiply
    816,005.80x = 1,224,008.70 × 255,039.40
  4. Step 4: Simplify right side
    816,005.80x = 312,170,444,442.78
  5. Step 5: Solve for x
    x = 312,170,444,442.78/816,005.80
  6. Step 6: Final answer
    x = 382,559.10

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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.