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Finding the Fourth Proportional to 493,316.76, 680,778.84 and 266,962.20

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Solution

The fourth proportional to 493,316.76, 680,778.84 and 266,962.20 is: 368,408.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,316.76 : 680,778.84 = 266,962.20 : x
  2. Step 2: Convert to fraction form
    493,316.76/680,778.84 = 266,962.20/x
  3. Step 3: Cross multiply
    493,316.76x = 680,778.84 × 266,962.20
  4. Step 4: Simplify right side
    493,316.76x = 181,742,216,839.85
  5. Step 5: Solve for x
    x = 181,742,216,839.85/493,316.76
  6. Step 6: Final answer
    x = 368,408.76

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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.