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Finding the Fourth Proportional to 657,754.94, 907,698.48 and 355,948.94

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Solution

The fourth proportional to 657,754.94, 907,698.48 and 355,948.94 is: 491,207.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,754.94 : 907,698.48 = 355,948.94 : x
  2. Step 2: Convert to fraction form
    657,754.94/907,698.48 = 355,948.94/x
  3. Step 3: Cross multiply
    657,754.94x = 907,698.48 × 355,948.94
  4. Step 4: Simplify right side
    657,754.94x = 323,094,311,795.61
  5. Step 5: Solve for x
    x = 323,094,311,795.61/657,754.94
  6. Step 6: Final answer
    x = 491,207.73

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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.