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Finding the Fourth Proportional to 426,722.85, 588,894.39 and 245,434.50

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Solution

The fourth proportional to 426,722.85, 588,894.39 and 245,434.50 is: 338,709.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,722.85 : 588,894.39 = 245,434.50 : x
  2. Step 2: Convert to fraction form
    426,722.85/588,894.39 = 245,434.50/x
  3. Step 3: Cross multiply
    426,722.85x = 588,894.39 × 245,434.50
  4. Step 4: Simplify right side
    426,722.85x = 144,535,000,162.46
  5. Step 5: Solve for x
    x = 144,535,000,162.46/426,722.85
  6. Step 6: Final answer
    x = 338,709.31

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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.