Home / 453,290.13-678,258.09-273,479.85

Finding the Fourth Proportional to 453,290.13, 678,258.09 and 273,479.85

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Solution

The fourth proportional to 453,290.13, 678,258.09 and 273,479.85 is: 409,207.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,290.13 : 678,258.09 = 273,479.85 : x
  2. Step 2: Convert to fraction form
    453,290.13/678,258.09 = 273,479.85/x
  3. Step 3: Cross multiply
    453,290.13x = 678,258.09 × 273,479.85
  4. Step 4: Simplify right side
    453,290.13x = 185,489,920,714.49
  5. Step 5: Solve for x
    x = 185,489,920,714.49/453,290.13
  6. Step 6: Final answer
    x = 409,207.94

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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.