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Finding the Fourth Proportional to 629,300.77, 868,441.02 and 357,374.32

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Solution

The fourth proportional to 629,300.77, 868,441.02 and 357,374.32 is: 493,179.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,300.77 : 868,441.02 = 357,374.32 : x
  2. Step 2: Convert to fraction form
    629,300.77/868,441.02 = 357,374.32/x
  3. Step 3: Cross multiply
    629,300.77x = 868,441.02 × 357,374.32
  4. Step 4: Simplify right side
    629,300.77x = 310,358,518,982.61
  5. Step 5: Solve for x
    x = 310,358,518,982.61/629,300.77
  6. Step 6: Final answer
    x = 493,179.94

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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.