Home / 921,714.88-1,382,273.28-353,065.72

Finding the Fourth Proportional to 921,714.88, 1,382,273.28 and 353,065.72

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Solution

The fourth proportional to 921,714.88, 1,382,273.28 and 353,065.72 is: 529,484.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,714.88 : 1,382,273.28 = 353,065.72 : x
  2. Step 2: Convert to fraction form
    921,714.88/1,382,273.28 = 353,065.72/x
  3. Step 3: Cross multiply
    921,714.88x = 1,382,273.28 × 353,065.72
  4. Step 4: Simplify right side
    921,714.88x = 488,033,310,839.96
  5. Step 5: Solve for x
    x = 488,033,310,839.96/921,714.88
  6. Step 6: Final answer
    x = 529,484.03

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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.