Home / 859,766.72-1,186,383.87-497,135.71

Finding the Fourth Proportional to 859,766.72, 1,186,383.87 and 497,135.71

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Solution

The fourth proportional to 859,766.72, 1,186,383.87 and 497,135.71 is: 685,992.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,766.72 : 1,186,383.87 = 497,135.71 : x
  2. Step 2: Convert to fraction form
    859,766.72/1,186,383.87 = 497,135.71/x
  3. Step 3: Cross multiply
    859,766.72x = 1,186,383.87 × 497,135.71
  4. Step 4: Simplify right side
    859,766.72x = 589,793,781,613.08
  5. Step 5: Solve for x
    x = 589,793,781,613.08/859,766.72
  6. Step 6: Final answer
    x = 685,992.80

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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.