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Finding the Fourth Proportional to 653,615.33, 980,045.73 and 253,788.90

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Solution

The fourth proportional to 653,615.33, 980,045.73 and 253,788.90 is: 380,536.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,615.33 : 980,045.73 = 253,788.90 : x
  2. Step 2: Convert to fraction form
    653,615.33/980,045.73 = 253,788.90/x
  3. Step 3: Cross multiply
    653,615.33x = 980,045.73 × 253,788.90
  4. Step 4: Simplify right side
    653,615.33x = 248,724,724,091.23
  5. Step 5: Solve for x
    x = 248,724,724,091.23/653,615.33
  6. Step 6: Final answer
    x = 380,536.86

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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.