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Finding the Fourth Proportional to 520,150.60, 780,420.30 and 204,827.32

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Solution

The fourth proportional to 520,150.60, 780,420.30 and 204,827.32 is: 307,317.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,150.60 : 780,420.30 = 204,827.32 : x
  2. Step 2: Convert to fraction form
    520,150.60/780,420.30 = 204,827.32/x
  3. Step 3: Cross multiply
    520,150.60x = 780,420.30 × 204,827.32
  4. Step 4: Simplify right side
    520,150.60x = 159,851,398,522.60
  5. Step 5: Solve for x
    x = 159,851,398,522.60/520,150.60
  6. Step 6: Final answer
    x = 307,317.53

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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.