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Finding the Fourth Proportional to 493,311.95, 680,770.47 and 266,957.45

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Solution

The fourth proportional to 493,311.95, 680,770.47 and 266,957.45 is: 368,401.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,311.95 : 680,770.47 = 266,957.45 : x
  2. Step 2: Convert to fraction form
    493,311.95/680,770.47 = 266,957.45/x
  3. Step 3: Cross multiply
    493,311.95x = 680,770.47 × 266,957.45
  4. Step 4: Simplify right side
    493,311.95x = 181,736,745,302.65
  5. Step 5: Solve for x
    x = 181,736,745,302.65/493,311.95
  6. Step 6: Final answer
    x = 368,401.27

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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.