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Finding the Fourth Proportional to 620,595.84, 929,056.68 and 383,175.12

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Solution

The fourth proportional to 620,595.84, 929,056.68 and 383,175.12 is: 573,628.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,595.84 : 929,056.68 = 383,175.12 : x
  2. Step 2: Convert to fraction form
    620,595.84/929,056.68 = 383,175.12/x
  3. Step 3: Cross multiply
    620,595.84x = 929,056.68 × 383,175.12
  4. Step 4: Simplify right side
    620,595.84x = 355,991,404,845.80
  5. Step 5: Solve for x
    x = 355,991,404,845.80/620,595.84
  6. Step 6: Final answer
    x = 573,628.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.