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Finding the Fourth Proportional to 520,094.60, 780,141.90 and 146,117.60

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Solution

The fourth proportional to 520,094.60, 780,141.90 and 146,117.60 is: 219,176.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,094.60 : 780,141.90 = 146,117.60 : x
  2. Step 2: Convert to fraction form
    520,094.60/780,141.90 = 146,117.60/x
  3. Step 3: Cross multiply
    520,094.60x = 780,141.90 × 146,117.60
  4. Step 4: Simplify right side
    520,094.60x = 113,992,462,087.44
  5. Step 5: Solve for x
    x = 113,992,462,087.44/520,094.60
  6. Step 6: Final answer
    x = 219,176.40

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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.