Home / 775,849.44-1,070,693.52-469,861.20

Finding the Fourth Proportional to 775,849.44, 1,070,693.52 and 469,861.20

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Solution

The fourth proportional to 775,849.44, 1,070,693.52 and 469,861.20 is: 648,421.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,849.44 : 1,070,693.52 = 469,861.20 : x
  2. Step 2: Convert to fraction form
    775,849.44/1,070,693.52 = 469,861.20/x
  3. Step 3: Cross multiply
    775,849.44x = 1,070,693.52 × 469,861.20
  4. Step 4: Simplify right side
    775,849.44x = 503,077,342,139.42
  5. Step 5: Solve for x
    x = 503,077,342,139.42/775,849.44
  6. Step 6: Final answer
    x = 648,421.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.