Home / 991,723.30-1,489,140.15-571,819.30

Finding the Fourth Proportional to 991,723.30, 1,489,140.15 and 571,819.30

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Solution

The fourth proportional to 991,723.30, 1,489,140.15 and 571,819.30 is: 858,625.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,723.30 : 1,489,140.15 = 571,819.30 : x
  2. Step 2: Convert to fraction form
    991,723.30/1,489,140.15 = 571,819.30/x
  3. Step 3: Cross multiply
    991,723.30x = 1,489,140.15 × 571,819.30
  4. Step 4: Simplify right side
    991,723.30x = 851,519,078,174.90
  5. Step 5: Solve for x
    x = 851,519,078,174.90/991,723.30
  6. Step 6: Final answer
    x = 858,625.67

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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.