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Finding the Fourth Proportional to 426,668.79, 588,820.82 and 245,380.87

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Solution

The fourth proportional to 426,668.79, 588,820.82 and 245,380.87 is: 338,635.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,668.79 : 588,820.82 = 245,380.87 : x
  2. Step 2: Convert to fraction form
    426,668.79/588,820.82 = 245,380.87/x
  3. Step 3: Cross multiply
    426,668.79x = 588,820.82 × 245,380.87
  4. Step 4: Simplify right side
    426,668.79x = 144,485,362,386.76
  5. Step 5: Solve for x
    x = 144,485,362,386.76/426,668.79
  6. Step 6: Final answer
    x = 338,635.88

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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.