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Finding the Fourth Proportional to 480,086, 662,518.68 and 278,894.96

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Solution

The fourth proportional to 480,086, 662,518.68 and 278,894.96 is: 384,875.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,086 : 662,518.68 = 278,894.96 : x
  2. Step 2: Convert to fraction form
    480,086/662,518.68 = 278,894.96/x
  3. Step 3: Cross multiply
    480,086x = 662,518.68 × 278,894.96
  4. Step 4: Simplify right side
    480,086x = 184,773,120,757.85
  5. Step 5: Solve for x
    x = 184,773,120,757.85/480,086
  6. Step 6: Final answer
    x = 384,875.04

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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.