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Finding the Fourth Proportional to 657,033.82, 906,706.57 and 355,227.82

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Solution

The fourth proportional to 657,033.82, 906,706.57 and 355,227.82 is: 490,214.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,033.82 : 906,706.57 = 355,227.82 : x
  2. Step 2: Convert to fraction form
    657,033.82/906,706.57 = 355,227.82/x
  3. Step 3: Cross multiply
    657,033.82x = 906,706.57 × 355,227.82
  4. Step 4: Simplify right side
    657,033.82x = 322,087,398,240.78
  5. Step 5: Solve for x
    x = 322,087,398,240.78/657,033.82
  6. Step 6: Final answer
    x = 490,214.34

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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.