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Finding the Fourth Proportional to 654,693.18, 903,372.44 and 368,157.89

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Solution

The fourth proportional to 654,693.18, 903,372.44 and 368,157.89 is: 507,999.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,693.18 : 903,372.44 = 368,157.89 : x
  2. Step 2: Convert to fraction form
    654,693.18/903,372.44 = 368,157.89/x
  3. Step 3: Cross multiply
    654,693.18x = 903,372.44 × 368,157.89
  4. Step 4: Simplify right side
    654,693.18x = 332,583,685,036.90
  5. Step 5: Solve for x
    x = 332,583,685,036.90/654,693.18
  6. Step 6: Final answer
    x = 507,999.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.