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Finding the Fourth Proportional to 671,027.57, 925,712.88 and 398,941.10

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Solution

The fourth proportional to 671,027.57, 925,712.88 and 398,941.10 is: 550,357.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,027.57 : 925,712.88 = 398,941.10 : x
  2. Step 2: Convert to fraction form
    671,027.57/925,712.88 = 398,941.10/x
  3. Step 3: Cross multiply
    671,027.57x = 925,712.88 × 398,941.10
  4. Step 4: Simplify right side
    671,027.57x = 369,304,914,631.37
  5. Step 5: Solve for x
    x = 369,304,914,631.37/671,027.57
  6. Step 6: Final answer
    x = 550,357.29

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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.