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Finding the Fourth Proportional to 657,028.40, 906,644.88 and 370,618.88

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Solution

The fourth proportional to 657,028.40, 906,644.88 and 370,618.88 is: 511,423.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,028.40 : 906,644.88 = 370,618.88 : x
  2. Step 2: Convert to fraction form
    657,028.40/906,644.88 = 370,618.88/x
  3. Step 3: Cross multiply
    657,028.40x = 906,644.88 × 370,618.88
  4. Step 4: Simplify right side
    657,028.40x = 336,019,705,450.11
  5. Step 5: Solve for x
    x = 336,019,705,450.11/657,028.40
  6. Step 6: Final answer
    x = 511,423.41

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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.