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Finding the Fourth Proportional to 575,410.45, 863,364.65 and 308,859.70

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Solution

The fourth proportional to 575,410.45, 863,364.65 and 308,859.70 is: 463,423.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,410.45 : 863,364.65 = 308,859.70 : x
  2. Step 2: Convert to fraction form
    575,410.45/863,364.65 = 308,859.70/x
  3. Step 3: Cross multiply
    575,410.45x = 863,364.65 × 308,859.70
  4. Step 4: Simplify right side
    575,410.45x = 266,658,546,789.61
  5. Step 5: Solve for x
    x = 266,658,546,789.61/575,410.45
  6. Step 6: Final answer
    x = 463,423.19

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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.