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Finding the Fourth Proportional to 520,027.04, 780,069.72 and 146,020.88

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Solution

The fourth proportional to 520,027.04, 780,069.72 and 146,020.88 is: 219,039.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,027.04 : 780,069.72 = 146,020.88 : x
  2. Step 2: Convert to fraction form
    520,027.04/780,069.72 = 146,020.88/x
  3. Step 3: Cross multiply
    520,027.04x = 780,069.72 × 146,020.88
  4. Step 4: Simplify right side
    520,027.04x = 113,906,462,345.30
  5. Step 5: Solve for x
    x = 113,906,462,345.30/520,027.04
  6. Step 6: Final answer
    x = 219,039.50

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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.