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Finding the Fourth Proportional to 657,323.64, 907,106.67 and 355,517.64

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Solution

The fourth proportional to 657,323.64, 907,106.67 and 355,517.64 is: 490,614.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,323.64 : 907,106.67 = 355,517.64 : x
  2. Step 2: Convert to fraction form
    657,323.64/907,106.67 = 355,517.64/x
  3. Step 3: Cross multiply
    657,323.64x = 907,106.67 × 355,517.64
  4. Step 4: Simplify right side
    657,323.64x = 322,492,422,546.66
  5. Step 5: Solve for x
    x = 322,492,422,546.66/657,323.64
  6. Step 6: Final answer
    x = 490,614.37

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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.