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Finding the Fourth Proportional to 520,550.48, 780,756.60 and 146,602.64

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Solution

The fourth proportional to 520,550.48, 780,756.60 and 146,602.64 is: 219,884.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,550.48 : 780,756.60 = 146,602.64 : x
  2. Step 2: Convert to fraction form
    520,550.48/780,756.60 = 146,602.64/x
  3. Step 3: Cross multiply
    520,550.48x = 780,756.60 × 146,602.64
  4. Step 4: Simplify right side
    520,550.48x = 114,460,978,757.42
  5. Step 5: Solve for x
    x = 114,460,978,757.42/520,550.48
  6. Step 6: Final answer
    x = 219,884.49

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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.