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Finding the Fourth Proportional to 626,248, 864,224.40 and 339,769.36

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Solution

The fourth proportional to 626,248, 864,224.40 and 339,769.36 is: 468,882.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,248 : 864,224.40 = 339,769.36 : x
  2. Step 2: Convert to fraction form
    626,248/864,224.40 = 339,769.36/x
  3. Step 3: Cross multiply
    626,248x = 864,224.40 × 339,769.36
  4. Step 4: Simplify right side
    626,248x = 293,636,971,284.38
  5. Step 5: Solve for x
    x = 293,636,971,284.38/626,248
  6. Step 6: Final answer
    x = 468,882.89

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1.5x scale

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.