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Finding the Fourth Proportional to 656,817.94, 985,595.85 and 357,319.42

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Solution

The fourth proportional to 656,817.94, 985,595.85 and 357,319.42 is: 536,179.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,817.94 : 985,595.85 = 357,319.42 : x
  2. Step 2: Convert to fraction form
    656,817.94/985,595.85 = 357,319.42/x
  3. Step 3: Cross multiply
    656,817.94x = 985,595.85 × 357,319.42
  4. Step 4: Simplify right side
    656,817.94x = 352,172,537,476.41
  5. Step 5: Solve for x
    x = 352,172,537,476.41/656,817.94
  6. Step 6: Final answer
    x = 536,179.84

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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.