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Finding the Fourth Proportional to 626,634.77, 864,750.03 and 340,154.48

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Solution

The fourth proportional to 626,634.77, 864,750.03 and 340,154.48 is: 469,409.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,634.77 : 864,750.03 = 340,154.48 : x
  2. Step 2: Convert to fraction form
    626,634.77/864,750.03 = 340,154.48/x
  3. Step 3: Cross multiply
    626,634.77x = 864,750.03 × 340,154.48
  4. Step 4: Simplify right side
    626,634.77x = 294,148,592,460.88
  5. Step 5: Solve for x
    x = 294,148,592,460.88/626,634.77
  6. Step 6: Final answer
    x = 469,409.94

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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.