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Finding the Fourth Proportional to 505,009.62, 697,837.06 and 480,408.30

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Solution

The fourth proportional to 505,009.62, 697,837.06 and 480,408.30 is: 663,842.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,009.62 : 697,837.06 = 480,408.30 : x
  2. Step 2: Convert to fraction form
    505,009.62/697,837.06 = 480,408.30/x
  3. Step 3: Cross multiply
    505,009.62x = 697,837.06 × 480,408.30
  4. Step 4: Simplify right side
    505,009.62x = 335,246,715,671.60
  5. Step 5: Solve for x
    x = 335,246,715,671.60/505,009.62
  6. Step 6: Final answer
    x = 663,842.24

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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.