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Finding the Fourth Proportional to 626,437, 864,483.67 and 339,957.15

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Solution

The fourth proportional to 626,437, 864,483.67 and 339,957.15 is: 469,141.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,437 : 864,483.67 = 339,957.15 : x
  2. Step 2: Convert to fraction form
    626,437/864,483.67 = 339,957.15/x
  3. Step 3: Cross multiply
    626,437x = 864,483.67 × 339,957.15
  4. Step 4: Simplify right side
    626,437x = 293,887,404,674.74
  5. Step 5: Solve for x
    x = 293,887,404,674.74/626,437
  6. Step 6: Final answer
    x = 469,141.20

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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.