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Finding the Fourth Proportional to 504,875.40, 756,000.90 and 399,024.60

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Solution

The fourth proportional to 504,875.40, 756,000.90 and 399,024.60 is: 597,499.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,875.40 : 756,000.90 = 399,024.60 : x
  2. Step 2: Convert to fraction form
    504,875.40/756,000.90 = 399,024.60/x
  3. Step 3: Cross multiply
    504,875.40x = 756,000.90 × 399,024.60
  4. Step 4: Simplify right side
    504,875.40x = 301,662,956,722.14
  5. Step 5: Solve for x
    x = 301,662,956,722.14/504,875.40
  6. Step 6: Final answer
    x = 597,499.81

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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.