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Finding the Fourth Proportional to 651,524.80, 977,416.80 and 547,067.20

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Solution

The fourth proportional to 651,524.80, 977,416.80 and 547,067.20 is: 820,709.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,524.80 : 977,416.80 = 547,067.20 : x
  2. Step 2: Convert to fraction form
    651,524.80/977,416.80 = 547,067.20/x
  3. Step 3: Cross multiply
    651,524.80x = 977,416.80 × 547,067.20
  4. Step 4: Simplify right side
    651,524.80x = 534,712,672,008.96
  5. Step 5: Solve for x
    x = 534,712,672,008.96/651,524.80
  6. Step 6: Final answer
    x = 820,709.62

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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.