Home / 657,946.68-907,965.42-356,141.88

Finding the Fourth Proportional to 657,946.68, 907,965.42 and 356,141.88

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Solution

The fourth proportional to 657,946.68, 907,965.42 and 356,141.88 is: 491,475.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,946.68 : 907,965.42 = 356,141.88 : x
  2. Step 2: Convert to fraction form
    657,946.68/907,965.42 = 356,141.88/x
  3. Step 3: Cross multiply
    657,946.68x = 907,965.42 × 356,141.88
  4. Step 4: Simplify right side
    657,946.68x = 323,364,511,653.79
  5. Step 5: Solve for x
    x = 323,364,511,653.79/657,946.68
  6. Step 6: Final answer
    x = 491,475.25

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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.