Home / 976,806.60-1,467,456.30-689,280.36

Finding the Fourth Proportional to 976,806.60, 1,467,456.30 and 689,280.36

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Solution

The fourth proportional to 976,806.60, 1,467,456.30 and 689,280.36 is: 1,035,505.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    976,806.60 : 1,467,456.30 = 689,280.36 : x
  2. Step 2: Convert to fraction form
    976,806.60/1,467,456.30 = 689,280.36/x
  3. Step 3: Cross multiply
    976,806.60x = 1,467,456.30 × 689,280.36
  4. Step 4: Simplify right side
    976,806.60x = 1,011,488,806,748.27
  5. Step 5: Solve for x
    x = 1,011,488,806,748.27/976,806.60
  6. Step 6: Final answer
    x = 1,035,505.70

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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.