Home / 816,079.80-1,224,234.90-255,055.80

Finding the Fourth Proportional to 816,079.80, 1,224,234.90 and 255,055.80

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Solution

The fourth proportional to 816,079.80, 1,224,234.90 and 255,055.80 is: 382,619.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,079.80 : 1,224,234.90 = 255,055.80 : x
  2. Step 2: Convert to fraction form
    816,079.80/1,224,234.90 = 255,055.80/x
  3. Step 3: Cross multiply
    816,079.80x = 1,224,234.90 × 255,055.80
  4. Step 4: Simplify right side
    816,079.80x = 312,248,211,807.42
  5. Step 5: Solve for x
    x = 312,248,211,807.42/816,079.80
  6. Step 6: Final answer
    x = 382,619.70

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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.