Home / 915,749.80-1,371,000.30-889,505.80

Finding the Fourth Proportional to 915,749.80, 1,371,000.30 and 889,505.80

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Solution

The fourth proportional to 915,749.80, 1,371,000.30 and 889,505.80 is: 1,331,709.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,749.80 : 1,371,000.30 = 889,505.80 : x
  2. Step 2: Convert to fraction form
    915,749.80/1,371,000.30 = 889,505.80/x
  3. Step 3: Cross multiply
    915,749.80x = 1,371,000.30 × 889,505.80
  4. Step 4: Simplify right side
    915,749.80x = 1,219,512,718,651.74
  5. Step 5: Solve for x
    x = 1,219,512,718,651.74/915,749.80
  6. Step 6: Final answer
    x = 1,331,709.51

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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.