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Finding the Fourth Proportional to 626,281.92, 864,274.59 and 339,807.69

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Solution

The fourth proportional to 626,281.92, 864,274.59 and 339,807.69 is: 468,937.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,281.92 : 864,274.59 = 339,807.69 : x
  2. Step 2: Convert to fraction form
    626,281.92/864,274.59 = 339,807.69/x
  3. Step 3: Cross multiply
    626,281.92x = 864,274.59 × 339,807.69
  4. Step 4: Simplify right side
    626,281.92x = 293,687,151,953.60
  5. Step 5: Solve for x
    x = 293,687,151,953.60/626,281.92
  6. Step 6: Final answer
    x = 468,937.62

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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.