Home / 768,342.96-1,059,327.60-630,012.23

Finding the Fourth Proportional to 768,342.96, 1,059,327.60 and 630,012.23

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Solution

The fourth proportional to 768,342.96, 1,059,327.60 and 630,012.23 is: 868,608.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,342.96 : 1,059,327.60 = 630,012.23 : x
  2. Step 2: Convert to fraction form
    768,342.96/1,059,327.60 = 630,012.23/x
  3. Step 3: Cross multiply
    768,342.96x = 1,059,327.60 × 630,012.23
  4. Step 4: Simplify right side
    768,342.96x = 667,389,338,279.91
  5. Step 5: Solve for x
    x = 667,389,338,279.91/768,342.96
  6. Step 6: Final answer
    x = 868,608.65

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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.