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Finding the Fourth Proportional to 502,018.60, 753,611.10 and 302,564.20

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Solution

The fourth proportional to 502,018.60, 753,611.10 and 302,564.20 is: 454,197.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,018.60 : 753,611.10 = 302,564.20 : x
  2. Step 2: Convert to fraction form
    502,018.60/753,611.10 = 302,564.20/x
  3. Step 3: Cross multiply
    502,018.60x = 753,611.10 × 302,564.20
  4. Step 4: Simplify right side
    502,018.60x = 228,015,739,582.62
  5. Step 5: Solve for x
    x = 228,015,739,582.62/502,018.60
  6. Step 6: Final answer
    x = 454,197.79

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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.