Home / 338,664.60-507,996.90-306,005.40

Finding the Fourth Proportional to 338,664.60, 507,996.90 and 306,005.40

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Solution

The fourth proportional to 338,664.60, 507,996.90 and 306,005.40 is: 459,008.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,664.60 : 507,996.90 = 306,005.40 : x
  2. Step 2: Convert to fraction form
    338,664.60/507,996.90 = 306,005.40/x
  3. Step 3: Cross multiply
    338,664.60x = 507,996.90 × 306,005.40
  4. Step 4: Simplify right side
    338,664.60x = 155,449,794,583.26
  5. Step 5: Solve for x
    x = 155,449,794,583.26/338,664.60
  6. Step 6: Final answer
    x = 459,008.10

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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.