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Finding the Fourth Proportional to 662,362.56, 993,664.80 and 307,327.68

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Solution

The fourth proportional to 662,362.56, 993,664.80 and 307,327.68 is: 461,047.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,362.56 : 993,664.80 = 307,327.68 : x
  2. Step 2: Convert to fraction form
    662,362.56/993,664.80 = 307,327.68/x
  3. Step 3: Cross multiply
    662,362.56x = 993,664.80 × 307,327.68
  4. Step 4: Simplify right side
    662,362.56x = 305,380,697,681.66
  5. Step 5: Solve for x
    x = 305,380,697,681.66/662,362.56
  6. Step 6: Final answer
    x = 461,047.64

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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.