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Finding the Fourth Proportional to 575,919.86, 794,714.22 and 321,287.45

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Solution

The fourth proportional to 575,919.86, 794,714.22 and 321,287.45 is: 443,345.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,919.86 : 794,714.22 = 321,287.45 : x
  2. Step 2: Convert to fraction form
    575,919.86/794,714.22 = 321,287.45/x
  3. Step 3: Cross multiply
    575,919.86x = 794,714.22 × 321,287.45
  4. Step 4: Simplify right side
    575,919.86x = 255,331,701,248.97
  5. Step 5: Solve for x
    x = 255,331,701,248.97/575,919.86
  6. Step 6: Final answer
    x = 443,345.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.