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Finding the Fourth Proportional to 346,678.60, 520,017.90 and 303,824.20

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Solution

The fourth proportional to 346,678.60, 520,017.90 and 303,824.20 is: 455,736.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,678.60 : 520,017.90 = 303,824.20 : x
  2. Step 2: Convert to fraction form
    346,678.60/520,017.90 = 303,824.20/x
  3. Step 3: Cross multiply
    346,678.60x = 520,017.90 × 303,824.20
  4. Step 4: Simplify right side
    346,678.60x = 157,994,022,453.18
  5. Step 5: Solve for x
    x = 157,994,022,453.18/346,678.60
  6. Step 6: Final answer
    x = 455,736.30

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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.