Home / 856,390.18-1,181,668.24-488,699.43

Finding the Fourth Proportional to 856,390.18, 1,181,668.24 and 488,699.43

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Solution

The fourth proportional to 856,390.18, 1,181,668.24 and 488,699.43 is: 674,319.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,390.18 : 1,181,668.24 = 488,699.43 : x
  2. Step 2: Convert to fraction form
    856,390.18/1,181,668.24 = 488,699.43/x
  3. Step 3: Cross multiply
    856,390.18x = 1,181,668.24 × 488,699.43
  4. Step 4: Simplify right side
    856,390.18x = 577,480,595,847.78
  5. Step 5: Solve for x
    x = 577,480,595,847.78/856,390.18
  6. Step 6: Final answer
    x = 674,319.50

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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.