Home / 657,546.32-907,410.12-355,733.84

Finding the Fourth Proportional to 657,546.32, 907,410.12 and 355,733.84

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Solution

The fourth proportional to 657,546.32, 907,410.12 and 355,733.84 is: 490,910.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,546.32 : 907,410.12 = 355,733.84 : x
  2. Step 2: Convert to fraction form
    657,546.32/907,410.12 = 355,733.84/x
  3. Step 3: Cross multiply
    657,546.32x = 907,410.12 × 355,733.84
  4. Step 4: Simplify right side
    657,546.32x = 322,796,486,442.46
  5. Step 5: Solve for x
    x = 322,796,486,442.46/657,546.32
  6. Step 6: Final answer
    x = 490,910.64

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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.