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Finding the Fourth Proportional to 611,470.32, 843,906.80 and 369,754.57

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Solution

The fourth proportional to 611,470.32, 843,906.80 and 369,754.57 is: 510,308.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,470.32 : 843,906.80 = 369,754.57 : x
  2. Step 2: Convert to fraction form
    611,470.32/843,906.80 = 369,754.57/x
  3. Step 3: Cross multiply
    611,470.32x = 843,906.80 × 369,754.57
  4. Step 4: Simplify right side
    611,470.32x = 312,038,397,933.35
  5. Step 5: Solve for x
    x = 312,038,397,933.35/611,470.32
  6. Step 6: Final answer
    x = 510,308.33

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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.