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Finding the Fourth Proportional to 520,450.38, 780,675.84 and 146,473.38

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Solution

The fourth proportional to 520,450.38, 780,675.84 and 146,473.38 is: 219,710.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,450.38 : 780,675.84 = 146,473.38 : x
  2. Step 2: Convert to fraction form
    520,450.38/780,675.84 = 146,473.38/x
  3. Step 3: Cross multiply
    520,450.38x = 780,675.84 × 146,473.38
  4. Step 4: Simplify right side
    520,450.38x = 114,348,228,969.14
  5. Step 5: Solve for x
    x = 114,348,228,969.14/520,450.38
  6. Step 6: Final answer
    x = 219,710.15

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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.