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Finding the Fourth Proportional to 626,714.69, 864,876.71 and 340,234.84

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Solution

The fourth proportional to 626,714.69, 864,876.71 and 340,234.84 is: 469,529.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,714.69 : 864,876.71 = 340,234.84 : x
  2. Step 2: Convert to fraction form
    626,714.69/864,876.71 = 340,234.84/x
  3. Step 3: Cross multiply
    626,714.69x = 864,876.71 × 340,234.84
  4. Step 4: Simplify right side
    626,714.69x = 294,261,183,021.02
  5. Step 5: Solve for x
    x = 294,261,183,021.02/626,714.69
  6. Step 6: Final answer
    x = 469,529.74

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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.