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Finding the Fourth Proportional to 654,755.40, 903,553.38 and 368,275.68

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Solution

The fourth proportional to 654,755.40, 903,553.38 and 368,275.68 is: 508,215.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,755.40 : 903,553.38 = 368,275.68 : x
  2. Step 2: Convert to fraction form
    654,755.40/903,553.38 = 368,275.68/x
  3. Step 3: Cross multiply
    654,755.40x = 903,553.38 × 368,275.68
  4. Step 4: Simplify right side
    654,755.40x = 332,756,735,435.80
  5. Step 5: Solve for x
    x = 332,756,735,435.80/654,755.40
  6. Step 6: Final answer
    x = 508,215.34

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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.