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Finding the Fourth Proportional to 626,208, 864,167.04 and 357,941.76

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Solution

The fourth proportional to 626,208, 864,167.04 and 357,941.76 is: 493,959.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,208 : 864,167.04 = 357,941.76 : x
  2. Step 2: Convert to fraction form
    626,208/864,167.04 = 357,941.76/x
  3. Step 3: Cross multiply
    626,208x = 864,167.04 × 357,941.76
  4. Step 4: Simplify right side
    626,208x = 309,321,471,231.59
  5. Step 5: Solve for x
    x = 309,321,471,231.59/626,208
  6. Step 6: Final answer
    x = 493,959.63

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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.