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Finding the Fourth Proportional to 668,671.24, 922,828.80 and 382,135.36

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Solution

The fourth proportional to 668,671.24, 922,828.80 and 382,135.36 is: 527,382.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,671.24 : 922,828.80 = 382,135.36 : x
  2. Step 2: Convert to fraction form
    668,671.24/922,828.80 = 382,135.36/x
  3. Step 3: Cross multiply
    668,671.24x = 922,828.80 × 382,135.36
  4. Step 4: Simplify right side
    668,671.24x = 352,645,515,706.37
  5. Step 5: Solve for x
    x = 352,645,515,706.37/668,671.24
  6. Step 6: Final answer
    x = 527,382.51

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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.