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Finding the Fourth Proportional to 657,758.94, 907,704 and 355,952.94

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Solution

The fourth proportional to 657,758.94, 907,704 and 355,952.94 is: 491,213.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,758.94 : 907,704 = 355,952.94 : x
  2. Step 2: Convert to fraction form
    657,758.94/907,704 = 355,952.94/x
  3. Step 3: Cross multiply
    657,758.94x = 907,704 × 355,952.94
  4. Step 4: Simplify right side
    657,758.94x = 323,099,907,449.76
  5. Step 5: Solve for x
    x = 323,099,907,449.76/657,758.94
  6. Step 6: Final answer
    x = 491,213.25

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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.