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Finding the Fourth Proportional to 671,019.56, 925,701.87 and 398,933.07

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Solution

The fourth proportional to 671,019.56, 925,701.87 and 398,933.07 is: 550,346.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,019.56 : 925,701.87 = 398,933.07 : x
  2. Step 2: Convert to fraction form
    671,019.56/925,701.87 = 398,933.07/x
  3. Step 3: Cross multiply
    671,019.56x = 925,701.87 × 398,933.07
  4. Step 4: Simplify right side
    671,019.56x = 369,293,084,684.46
  5. Step 5: Solve for x
    x = 369,293,084,684.46/671,019.56
  6. Step 6: Final answer
    x = 550,346.23

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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.