Home / 885,749.20-1,328,623.80-862,421.20

Finding the Fourth Proportional to 885,749.20, 1,328,623.80 and 862,421.20

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Solution

The fourth proportional to 885,749.20, 1,328,623.80 and 862,421.20 is: 1,293,631.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,749.20 : 1,328,623.80 = 862,421.20 : x
  2. Step 2: Convert to fraction form
    885,749.20/1,328,623.80 = 862,421.20/x
  3. Step 3: Cross multiply
    885,749.20x = 1,328,623.80 × 862,421.20
  4. Step 4: Simplify right side
    885,749.20x = 1,145,833,331,944.56
  5. Step 5: Solve for x
    x = 1,145,833,331,944.56/885,749.20
  6. Step 6: Final answer
    x = 1,293,631.80

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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.