Home / 778,514.08-1,074,452.52-456,350.80

Finding the Fourth Proportional to 778,514.08, 1,074,452.52 and 456,350.80

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Solution

The fourth proportional to 778,514.08, 1,074,452.52 and 456,350.80 is: 629,824.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,514.08 : 1,074,452.52 = 456,350.80 : x
  2. Step 2: Convert to fraction form
    778,514.08/1,074,452.52 = 456,350.80/x
  3. Step 3: Cross multiply
    778,514.08x = 1,074,452.52 × 456,350.80
  4. Step 4: Simplify right side
    778,514.08x = 490,327,267,064.02
  5. Step 5: Solve for x
    x = 490,327,267,064.02/778,514.08
  6. Step 6: Final answer
    x = 629,824.53

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Double scale
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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.