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Finding the Fourth Proportional to 668,696.82, 922,820.76 and 382,254.90

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Solution

The fourth proportional to 668,696.82, 922,820.76 and 382,254.90 is: 527,522.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,696.82 : 922,820.76 = 382,254.90 : x
  2. Step 2: Convert to fraction form
    668,696.82/922,820.76 = 382,254.90/x
  3. Step 3: Cross multiply
    668,696.82x = 922,820.76 × 382,254.90
  4. Step 4: Simplify right side
    668,696.82x = 352,752,757,331.72
  5. Step 5: Solve for x
    x = 352,752,757,331.72/668,696.82
  6. Step 6: Final answer
    x = 527,522.71

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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.