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Finding the Fourth Proportional to 626,733.72, 864,879.12 and 340,251.30

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Solution

The fourth proportional to 626,733.72, 864,879.12 and 340,251.30 is: 469,539.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,733.72 : 864,879.12 = 340,251.30 : x
  2. Step 2: Convert to fraction form
    626,733.72/864,879.12 = 340,251.30/x
  3. Step 3: Cross multiply
    626,733.72x = 864,879.12 × 340,251.30
  4. Step 4: Simplify right side
    626,733.72x = 294,276,244,922.86
  5. Step 5: Solve for x
    x = 294,276,244,922.86/626,733.72
  6. Step 6: Final answer
    x = 469,539.51

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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.