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Finding the Fourth Proportional to 634,149.48, 875,103.06 and 347,663.28

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Solution

The fourth proportional to 634,149.48, 875,103.06 and 347,663.28 is: 479,762.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,149.48 : 875,103.06 = 347,663.28 : x
  2. Step 2: Convert to fraction form
    634,149.48/875,103.06 = 347,663.28/x
  3. Step 3: Cross multiply
    634,149.48x = 875,103.06 × 347,663.28
  4. Step 4: Simplify right side
    634,149.48x = 304,241,200,177.64
  5. Step 5: Solve for x
    x = 304,241,200,177.64/634,149.48
  6. Step 6: Final answer
    x = 479,762.60

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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.