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Finding the Fourth Proportional to 499,036.40, 748,333.16 and 309,489.11

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Solution

The fourth proportional to 499,036.40, 748,333.16 and 309,489.11 is: 464,096.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,036.40 : 748,333.16 = 309,489.11 : x
  2. Step 2: Convert to fraction form
    499,036.40/748,333.16 = 309,489.11/x
  3. Step 3: Cross multiply
    499,036.40x = 748,333.16 × 309,489.11
  4. Step 4: Simplify right side
    499,036.40x = 231,600,963,671.89
  5. Step 5: Solve for x
    x = 231,600,963,671.89/499,036.40
  6. Step 6: Final answer
    x = 464,096.33

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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.