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Finding the Fourth Proportional to 618,039.96, 926,914.50 and 348,285.72

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Solution

The fourth proportional to 618,039.96, 926,914.50 and 348,285.72 is: 522,346.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,039.96 : 926,914.50 = 348,285.72 : x
  2. Step 2: Convert to fraction form
    618,039.96/926,914.50 = 348,285.72/x
  3. Step 3: Cross multiply
    618,039.96x = 926,914.50 × 348,285.72
  4. Step 4: Simplify right side
    618,039.96x = 322,831,084,010.94
  5. Step 5: Solve for x
    x = 322,831,084,010.94/618,039.96
  6. Step 6: Final answer
    x = 522,346.62

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1.5x scale

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.