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Finding the Fourth Proportional to 626,250, 864,227.16 and 339,771.36

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Solution

The fourth proportional to 626,250, 864,227.16 and 339,771.36 is: 468,885.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,250 : 864,227.16 = 339,771.36 : x
  2. Step 2: Convert to fraction form
    626,250/864,227.16 = 339,771.36/x
  3. Step 3: Cross multiply
    626,250x = 864,227.16 × 339,771.36
  4. Step 4: Simplify right side
    626,250x = 293,639,637,502.14
  5. Step 5: Solve for x
    x = 293,639,637,502.14/626,250
  6. Step 6: Final answer
    x = 468,885.65

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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.