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Finding the Fourth Proportional to 641,744.94, 885,701.40 and 369,760.28

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Solution

The fourth proportional to 641,744.94, 885,701.40 and 369,760.28 is: 510,322.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,744.94 : 885,701.40 = 369,760.28 : x
  2. Step 2: Convert to fraction form
    641,744.94/885,701.40 = 369,760.28/x
  3. Step 3: Cross multiply
    641,744.94x = 885,701.40 × 369,760.28
  4. Step 4: Simplify right side
    641,744.94x = 327,497,197,660.39
  5. Step 5: Solve for x
    x = 327,497,197,660.39/641,744.94
  6. Step 6: Final answer
    x = 510,322.99

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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.