Home / 816,132.30-1,224,313.65-255,108.30

Finding the Fourth Proportional to 816,132.30, 1,224,313.65 and 255,108.30

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Solution

The fourth proportional to 816,132.30, 1,224,313.65 and 255,108.30 is: 382,698.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,132.30 : 1,224,313.65 = 255,108.30 : x
  2. Step 2: Convert to fraction form
    816,132.30/1,224,313.65 = 255,108.30/x
  3. Step 3: Cross multiply
    816,132.30x = 1,224,313.65 × 255,108.30
  4. Step 4: Simplify right side
    816,132.30x = 312,332,573,918.30
  5. Step 5: Solve for x
    x = 312,332,573,918.30/816,132.30
  6. Step 6: Final answer
    x = 382,698.46

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Double scale
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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.