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Finding the Fourth Proportional to 520,026.60, 779,982.30 and 146,087.40

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Solution

The fourth proportional to 520,026.60, 779,982.30 and 146,087.40 is: 219,114.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,026.60 : 779,982.30 = 146,087.40 : x
  2. Step 2: Convert to fraction form
    520,026.60/779,982.30 = 146,087.40/x
  3. Step 3: Cross multiply
    520,026.60x = 779,982.30 × 146,087.40
  4. Step 4: Simplify right side
    520,026.60x = 113,945,586,253.02
  5. Step 5: Solve for x
    x = 113,945,586,253.02/520,026.60
  6. Step 6: Final answer
    x = 219,114.92

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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.