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Finding the Fourth Proportional to 578,337.91, 798,131.24 and 320,214.83

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Solution

The fourth proportional to 578,337.91, 798,131.24 and 320,214.83 is: 441,910.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,337.91 : 798,131.24 = 320,214.83 : x
  2. Step 2: Convert to fraction form
    578,337.91/798,131.24 = 320,214.83/x
  3. Step 3: Cross multiply
    578,337.91x = 798,131.24 × 320,214.83
  4. Step 4: Simplify right side
    578,337.91x = 255,573,459,334.29
  5. Step 5: Solve for x
    x = 255,573,459,334.29/578,337.91
  6. Step 6: Final answer
    x = 441,910.27

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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.