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Finding the Fourth Proportional to 657,600.75, 907,489.04 and 355,794.75

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Solution

The fourth proportional to 657,600.75, 907,489.04 and 355,794.75 is: 490,996.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,600.75 : 907,489.04 = 355,794.75 : x
  2. Step 2: Convert to fraction form
    657,600.75/907,489.04 = 355,794.75/x
  3. Step 3: Cross multiply
    657,600.75x = 907,489.04 × 355,794.75
  4. Step 4: Simplify right side
    657,600.75x = 322,879,834,335.57
  5. Step 5: Solve for x
    x = 322,879,834,335.57/657,600.75
  6. Step 6: Final answer
    x = 490,996.76

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Double scale
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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.