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Finding the Fourth Proportional to 478,595.79, 660,466.59 and 263,743.53

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Solution

The fourth proportional to 478,595.79, 660,466.59 and 263,743.53 is: 363,968.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,595.79 : 660,466.59 = 263,743.53 : x
  2. Step 2: Convert to fraction form
    478,595.79/660,466.59 = 263,743.53/x
  3. Step 3: Cross multiply
    478,595.79x = 660,466.59 × 263,743.53
  4. Step 4: Simplify right side
    478,595.79x = 174,193,789,893.66
  5. Step 5: Solve for x
    x = 174,193,789,893.66/478,595.79
  6. Step 6: Final answer
    x = 363,968.50

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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.