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Finding the Fourth Proportional to 657,310.72, 907,642 and 416,019.04

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Solution

The fourth proportional to 657,310.72, 907,642 and 416,019.04 is: 574,456.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,310.72 : 907,642 = 416,019.04 : x
  2. Step 2: Convert to fraction form
    657,310.72/907,642 = 416,019.04/x
  3. Step 3: Cross multiply
    657,310.72x = 907,642 × 416,019.04
  4. Step 4: Simplify right side
    657,310.72x = 377,596,353,503.68
  5. Step 5: Solve for x
    x = 377,596,353,503.68/657,310.72
  6. Step 6: Final answer
    x = 574,456.41

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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.