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Finding the Fourth Proportional to 626,528.74, 864,610.49 and 340,048.86

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Solution

The fourth proportional to 626,528.74, 864,610.49 and 340,048.86 is: 469,267.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,528.74 : 864,610.49 = 340,048.86 : x
  2. Step 2: Convert to fraction form
    626,528.74/864,610.49 = 340,048.86/x
  3. Step 3: Cross multiply
    626,528.74x = 864,610.49 × 340,048.86
  4. Step 4: Simplify right side
    626,528.74x = 294,009,809,768.30
  5. Step 5: Solve for x
    x = 294,009,809,768.30/626,528.74
  6. Step 6: Final answer
    x = 469,267.88

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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.