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Finding the Fourth Proportional to 492,687.34, 679,909.52 and 266,332.84

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Solution

The fourth proportional to 492,687.34, 679,909.52 and 266,332.84 is: 367,539.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,687.34 : 679,909.52 = 266,332.84 : x
  2. Step 2: Convert to fraction form
    492,687.34/679,909.52 = 266,332.84/x
  3. Step 3: Cross multiply
    492,687.34x = 679,909.52 × 266,332.84
  4. Step 4: Simplify right side
    492,687.34x = 181,082,232,370.70
  5. Step 5: Solve for x
    x = 181,082,232,370.70/492,687.34
  6. Step 6: Final answer
    x = 367,539.85

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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.