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Finding the Fourth Proportional to 346,679.60, 520,019.40 and 303,825.20

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Solution

The fourth proportional to 346,679.60, 520,019.40 and 303,825.20 is: 455,737.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,679.60 : 520,019.40 = 303,825.20 : x
  2. Step 2: Convert to fraction form
    346,679.60/520,019.40 = 303,825.20/x
  3. Step 3: Cross multiply
    346,679.60x = 520,019.40 × 303,825.20
  4. Step 4: Simplify right side
    346,679.60x = 157,994,998,208.88
  5. Step 5: Solve for x
    x = 157,994,998,208.88/346,679.60
  6. Step 6: Final answer
    x = 455,737.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.